What is man? A miserable little pile of secrets.
And nothing reveals secrets like committing to somebody for life. When you live with somebody you learn more about them than you ever necessarily wanted to.
Are they good or bad? Not necessarily. But they are a surprise.
Here were some of those answers.
Loss In Crustmunication
I have a friend who was born and raised in Romania in a relatively poor family. His favourite section of a loaf of bread was the crusts on ether end (possibly even his favourite food in general) so when he got married (to a woman from Australia) he started leaving the crusts for her because they're the best so he wanted her to have them. Well typically in Australia we throw away the end crusts, so when my friend left them she assumed he didn't want them ether and threw them away. They were married for years before he caught her tossing them and got confused.
I was the kid that my dad never told his new wife about. They had 3 kids together before she found out about me. My struggling mom filed for financial assistance, and when they found out she wasn't getting child support for me, they tracked my dad down easily through his government job and started docking his wages. I was 12. And that's how he had to tell his wife about this glaring omission from his past.
He likes to eat fish.
Somehow in our six years of dating, I got it into my head that he didn't like to eat seafood. My parents would cook dinner and invite him, and I'd constantly tell my mom, "No, can you make something else? He doesn't eat fish."
My husband loves most seafood, with the singular, random exception of coconut shrimp. We joke about that to this day, that I unintentionally kept him from some of his favorite foods without so much as a conversation about it.
That's a lighthearted answer. I'm sure there are many more. Eleven years in and we are still learning things about one another.
He's really good at doing household chores. Between us, I do all the cooking and he cleans up. He even makes sure the cutlery air dries on a cloth before wiping down the water stains. He developed a cleaning procedure to make sure the black marble kitchen top is spotless. He never ever leaves the dishes for the next day no matter how late the dinner ends (which can be really late when we entertain guests)
Also, he has a fondness for the latest household gadgets. The robotic vacuum cleaner was a really good buy - now he's eyeing an electric lock so we will never need to carry our keys again.
Analog Is Oldalog
My wife cannot read an analog watch / clock for time. Married 4 years, been together 7 years total, and somehow that came up only a month ago when I asked for the time off a watch during a power outage.
I don't give her a hard time about it, but that was a fun fact to learn
That he lives and breathes sports. I knew he liked sports when we were dating, but I didn't realize that's all he liked. I didn't know he would rather watch football games on Sundays than go to family dinners or anywhere else. I didn't realize he wouldn't want to watch anything but sports on tv. I didn't know that he would want to play or watch basketball/football/baseball/golf every waking moment.
I Didn't Know He Would Prefer Sports to Sex. I was gobsmacked.
My mom found out my dad was a compulsive liar when his twin sister didn't show up to their wedding. When questioned about it, he said she must have imagined the dozens of stories he had told about his twin sister. He is an only child.
How insane his mother is. He was clear that they had a difficult relationship when he was growing up and that he is really close with his dad because of her behavior. Since we've been married she's been diagnosed with narcissistic personality disorder, and her health professionals say it's likely she has genetic degenerative neurology (Huntington's).
He absolutely cannot be trusted with desserts in the house. Back when we were engaged he'd give me time to eat my half of the ice cream or Oreo package or whatever we had on hand... now? I'm sitting here eating thin mints from a stash from under frozen veggies in our outside freezer.
The Thirteenth Year
She's a great swimmer. One day, after we'd be married for about seven years, we joined a gym with a swimming pool. She challenged me to a race. Ok, I thought, I'm a pretty good swimmer. I was surprised when she offered me a half-length head start - and then doubly surprised when despite my massive head start she beat me easily. Apparently she used to be a competition swimmer at school. She's basically half-dolphin. But she'd never happened to mention it before.