who cooks normally?: Jinmay. Slingshot would be like we don't need to eat......
how often do they fight?: Slingshot starts them a lot but Jinmay ends them.
what do they do when they’re away from each other?: I don't even know what Jinmay does now when she's not with the hyperforce hahahahaha. Hm....Jinmay looks for clues to her past or helps the hyperforce while Slingshot hunts down Maezono.
nicknames for each other?: Slingshot is already a nickname.....this is me being biased on theories and robot stuff and not what I'd think Slingshot would do, but Slingshot calling Jinmay 'Six' appeals to me.
who is more likely to pay for dinner?: Slingshot. If Jinmay ever feels bad, she slips him money when he's not paying attention.
who steals the covers at night?: Neither....Slingshot going they don't need blankets, but gives Jinmay blankets anyway.
what would they get each other for gifts?: Jinmay would get him something really 'human' in that it's nice but not practical/he would initially badmouth it.....let's say a scarf. Slingshot wouldn't give gifts, but if he did.......something also weirdly 'human' but because he thinks she'd just purely like it and he doesn't actually understand.....let's say a razor.
who remembers things?: They both do, but Slingshot would try to look like he doesn't care.
what would they do if the other one was hurt?: Jinmay would protect Slingshot and call for help. Slingshot would be on a vengeance.
who cusses more?: Slingshot of course.
who kissed who first?: Jinmay, because Slingshot doesn't have a mouth.......
who made the first move?: ......................Neither........? They fell into it somehow.........
who started the relationship?: Sort of the same as the previous answer.