Mun’s Theories:

who cooks normally?: Somehow, I see Sera as the one being too busy to cook, so Hakuba would happily take care of that. (Is this the answer that I write every time? Geez Hakubby likes cooking, apparently.) BUT if she wanted to, she of course could. He’s not going to doubt her ability. Actually, they could cook together. That would be really cute. 

how often do they fight?: Probably not too much, actually. Oddly enough. Bickering here and there, perhaps, but I can easily see Hakuba being whipped in this relationship. She yells sometimes and he just lets her rant it out and then calmly makes suggestions when she’s done. 

what do they do when they’re away from each other?: SOLVE ALL OF THE CASES. Hakuba drinks a lot more tea when he’s not with her, too. Something about loud Americans not understanding… 

nicknames for each other?:  Goodness. ‘Yank’ for Sera (omg) and ‘Prat’ for Hakuba. That is so mean. Guys, stop that. How about something like… Violent Violet? No wait, that’s not good, either! Wait, wait, wait, I’ve got it:  Pantheress for Sera, Sea Horse for Hakuba. omfg stop nevermind I give up they’re not allowed to have nicknames for each other

who is more likely to pay for dinner?: They’d totally fight over it every time. 

who steals the covers at night?: SERA… at first. But then Hakuba would steal them right back. And so on and so forth until they either go coverless or curl up ogether. 

what would they get each other for gifts?: Subtle jewelry (bracelets, necklaces), flowers, books… but mostly consumables like chocolate or dinner or tickets to that thing you like

who remembers things?: Hakuba. He’s so meticulous about that sort of thing.  

who cusses more?: Sera, though the longer they’re together, the more Hakuba does, too. All in good fun, though!  

what would they do if the other one was hurt?: Treat the wounds efficiently, all while laughing about how they should have seen the other guy. 

who kissed who first?: Hakuba, though he hadn’t exactly intended to. It sort of just happened!  Something about a fight and drinking and working on frustrating cases and just…! STOP SAYING YOU’RE NOT BEAUTIFUL YOU’RE VERY ATTRACTIVE, GOD! HERE I’LL PROVE IT. 

who made the first move?: Sera! Because who can resist that I mean right. It happened very quickly. 

who started the relationship?: Hakuba, when he actually called the next day. 

Hakuba’s Thoughts: 

“Is she going to kick me in the face? I’d really rather not be kicked in the face. Do we really need to post this? I’m nervous. She’s cute, but she’s definitely going to kick me in the face. I can just feel it.”