Mun’s Theories:

who cooks normally?: I’m gonna say that KID lets Hakuba cook because he wants Hakuba to feel useful. 

how often do they fight?: There’s probably lots of minor disagreements that are worked out easily enough (usually it’s ‘Hakuba, stop FREAKING OUT’ ‘I DON’T KNOW HOW’), and then a larger argument when one of them does something dangerous. 

what do they do when they’re away from each other?: Socialize, read, work… Hakuba texts all the time, though. 

nicknames for each other?: ’Mon cher voleur’ for Kaito, ‘Dear Detective’ for Hakuba.

who is more likely to pay for dinner?: Hakuba tries. KID insists that he can take care of his own, too, though… so they probably go back and forth. 

who steals the covers at night?: KID. Which makes Hakuba curl up close to him. 

what would they get each other for gifts?: Books, magic trick stuff, little knick knacks, tokens of affection. 

who remembers things?: They’re both pretty good at remembering things, at least the important stuff. They overlap, and because Hakuba tries to not seem too needy, doesn’t mention things like anniversaries and birthdays.. and since Hakuba doesn’t mention them, KID assumes that Hakuba doesn’t care about them…  

who cusses more?: Hakuba. And it’s usually ‘GOD DAMMIT KID WHY DIDN’T YOU TELL ME YOU WERE SHOT?! SHIT!” 

what would they do if the other one was hurt?: Force the fretting aside, quickly and carefully attend to wounds and after care. They’re both very concerned about each other’s well-being. 

who kissed who first?: KID totally kissed Hakuba first. On a rooftop. It was surprising and romantic. 

who made the first move?: KID did because Hakuba is a complete wuss. 

who started the relationship?: UHMMM… I think Hakuba finally breaks down in this one, too… corners him, asks him for a straight answer, no more riddles and puzzles and all of that jazz. But I imagine it’s always going to be “complicated.” 

Hakuba’s Thoughts: 

“I’d be very lucky to be in a relationship with KID.”