Thought the first year of marriage was basically just an extension of your honeymoon? Think again. In fact, sociological research states that many couples learn new (and sometimes challenging) things about their partner in the first year of marriage, more than almost any other year in the relationship.

Even when two people cohabitate before the nuptials, it seems like they go out of their way to keep some aspects of their lives private. After marriage, though? It seems like all bets are off when it comes to personal privacy. Think: Using the bathroom with the door open, no secret-eating sessions, and no hiding when something annoys them. Sounds like a real treat, right? Fortunately, along with dispelling the many mysteries of your relationship, the first years of marriage are typically high in sexual satisfaction and happiness.

While some of these marital surprises are good, many of them could catch even the most understanding spouse off-guard. From hygiene habits to serious quirks, we’ll take a look at some of the most shocking things people learned about their partners… after the rings were already on. Real-life couples took surveys about the things they didn’t know about their partners until after marriage and the results are sure to rattle you. Have some surprising marriage revelations of your own? Leave them in the comments below!

15. They Lied In Their Online Dating Profile

So, everyone does it: Picks the most attractive (and maybe ten years old…) photo of themselves, beefs up their “resume” a little bit, and adds some new(ish) hobbies to sound cultured. But, what if your spouse lied about something major on the very platform that you met him or her on? For some, it’s been innocent: They said they played soccer, but had clearly never kicked a ball before in their life. For others, it was more complicated: like a woman saying she loved children, but neglecting to share that she had already lost one of her own until after marriage.

14. They’ve Been Married Before

‘It just never came up!’ Is what we believe the only excuse can be for leaving out this kind of pertinent information during dating and engagement. It wasn’t until some married couples were dealing with the legal side of marriage that it became apparent it wasn’t their partner’s first rodeo. From easily navigating the name-change process to applying for a tax break, it’s shocking how many people don’t talk about previous marriages until after they’re in another one.

13. They Have a Hidden Talent

This isn’t just about marriage, but about the sheer amount of time you’ve spent with someone to discover all the things they know how to do. It’s not unusual for married couples to discover new and interesting gifts their spouse has… from knowing how to play an instrument, to juggling, to being bilingual. Maybe the right situation just hasn’t come up for you to see your partner fold a tiny napkin into an origami masterpiece. Or you haven’t gone to the right park, where your partner can show you their insane monkey bar skills. Feeling like you come up short? Knowing how to cook the absolutely perfect grilled cheese is right up there with enviable spouse hidden talents (according to me, at least).

12. They’re Allergic to Something Weird

This is one of those things that you may not intentionally hide from your partner, you’re just so used to dealing with it by yourself, you don’t expect them to be involved. If you’re seriously allergic to papaya, you probably just casually avoided papaya your entire life (and relationship). It’s not until your new neighbor brings over their famous papaya salad one night and you politely decline that your partner is completely shocked they never knew you could die from eating his or her favorite Thai dish.

11. They Have a Secret Collection of Something

You know what they say, ‘Nothing like a super weird collection to keep the spark alive!’ Turns out, secret collections aren’t all that uncommon. Many people collect things privately, due to being embarrassed/uncomfortable talking about their unusual hobby. When that’s the case, it’s not uncommon to have no idea about your partner’s collection until after you share a home together. From old knives to children’s toys, we’ll let your imagination do the work as to just how weird collector’s items can get. In fact, in one Reddit thread, one person said they have a secret collection of prosthetic eyes.

10. They Binge Eat

So, binge eating is a very serious disorder. And, part of binge eating disorder is typically completely hiding it from family and friends. The binging and purging cycle can usually be concealed from just about everyone, that is, until maybe you’re on vacation or spending all day everyday together. Many spouses have been surprised to find out that their partner has disordered eating until after marriage, even after dating for years. Whetheryour partner has Binge Eating Disorder (BED) or just has symptoms of binge-eating, don’t be shocked if you’ve failed to notice throughout your whole courtship.

9. They’ve Had Plastic Surgery

Here’s a fun movie premise: Boy meets girl. Couple falls in love. Couple gets married. Couple receives wedding gift of a family photo album of the bride. Husband looks at wedding album and is completely shocked to learn that his beautiful wife has definitely had some work done. Sound too far-fetched? One redditor shared that they didn’t learn their wife had had breast implants, liposuction, and a nose job until long after they’d said ‘I do!’ This could feasibly happen to anyone, so let’s not rush to judgments. It’s pretty easy to imagine that ‘Have you had any work done?’ didn’t come up much during the courtship.

8. They Have A Substance Abuse Problem

Unlike plastic surgery, this one might be more of a deal-breaker. Similar to eating disorders, drug abuse can be something that individuals can become masterful at hiding and disguising. For many couples, it’s not until they’re married that they begin to pick up on some of the cues or eating or substance abuse disorders. For some, it can happen by discovering your partner’s ‘stash’ or paraphernalia. For others, the addiction can spiral and end up needing more attention and care than the partner had hoped. While this can be incredibly shocking for an unknowing partner, it’s an important step in getting an addict the help he or she may need.

7. They Talk to their Parents… A Lot!

Did you know there’s a whole Reddit thread about crazy things people didn’t know about their spouse until after marriage? One commenter shared that their wife had always seemed really close to her parents, and it only made him like her more. He figured she was family-oriented and communicative. However, once they got married, he began to feel a little bit differently! Turns out, his wife talks to her mom when she wakes up, gets home from work, and goes to bed. Like all things, this is definitely something that can change depending on one’s current lifestyle and behavior, but still… that’s a commitment.

6. They Have a Dark Past

This story from a Reddit commenter was just too juicy not to share. One man revealed that he had no idea his wife was guilty of embezzlement until after their had tied the knot. He had asked about her savings before, but she had said it was from Summer jobs and babysitting… Maybe robbing banks is a Summer job for some? Then, one day they returned home to find a message on their answering machine from the bank at which she was employed. From there, things got crazy and it turned out she had been transferring money into her personal account on a regular basis.

5. They Have a Huge Fear of Something

It’s totally natural for us as humans to completely avoid the things that most terrify us. If someone is afraid of heights, they likely avoid cliffs and roller coasters… If someone is afraid of clowns, they likely avoid the circus… It’s because of this that it’s likely your partner may have a secret fear you never knew about. Sometimes, though, those fears can be really unexpected. Some research on fear has indicated that things with holes, like waffles and lotus flowers, are some of the most common secret fears of adults.

4. They’ve Gone to Prison

File this under the: ‘Things to Google Before Marriage’ category. Years before we had public records of inmates and former arrests, it was entirely common for former prisoners to never share their past with their current spouse. While it would be more difficult to do now, it certainly could still happen to a less-than-savvy internet sleuth. While many people go to prison for harmless crimes or one bad decision, it is still probably something that should be brought up to the person you’re spend your life with, right? To each their own, we guess! Let’s just hope you’re not unknowingly married to a repeat offender.

3. They’re Racist

We all like to look at a new lover with rose-colored glasses. When we fall in love, even the bad parts of someone can become endearing and funny. This is called ‘the honeymoon phase.’ After the marriage, though, the honeymoon phase fades and we can be left glaring at some obvious personality challenges in our partners. That whole lovable, sarcastic personality can quickly morph into a cynic racist. This can be pretty jarring for a modern couple, as it should be. Let’s make talking about human rights and equal opportunity to the things to discuss at length before engagement, like money, politics, and religion.

2. They Have Messy Habits

Anyone who’s ever lived alone knows the utter bliss that can go with being our weirdest selves. When no one is around to tell you you’re ‘adulting’ wrong, it can be easy to adapt some pretty weird habits. On the Reddit thread about marital secrets you didn’t know, this is one of the most common topics that comes up. Some of the most infuriating household habits? From refusing to shut cupboards and drawers, to leaving the cap off of absolutely everything (think: condiments, toothpaste, pickles), it can take a good amount of effort to make two lovebirds be compatible roommates.

1. They Fart a Lot

At the beginning of the relationship, people hold a lot in. We hold in our dark secrets, past partners, biggest fears, and long-term goals. However, according to Reddit, we also are all holding in our gas. Tons of husbands and wives found common ground on the thread about having no idea how much their partner passes gas until after marriage. Does having a ring on our fingers make it more difficult to hold it in? Or, are we just hoping our partner won’t leave us for having to fart regularly? Either way, farting really seemed to be the most common thing people hid from their spouses until after marriage!