I was waiting for you to do this~~ <3
favorite non-sexual activity: reading and sitting in the garden, stargazing, just being in one another's company is enough for the both of them, really.
who uses all the hot water: hmm... probably Naminé because Data is rather scared of water and wouldn't want to be near it.
most trivial thing they fight over: they don't really fight, but they would probably argue over Data keeping quiet when he gets hurt. Which is pretty often as he's a bit of a klutz. Otherwise they don't fight over much of anything.
who does most of the cleaning: probably pretty evenly split between the two
what has a season pass on their dvr/who controls the netflix queue: Data, simply because he'd know how to do it. Then again I doubt they'd watch too much television so really neither of them would?
who calls up the super/landlord when the heat’s not working: Data will try and fix it himself, probably fail, and then Naminé will call the landlord while Data sulks about it.
who steals the blankets: Naminé. Definitely Naminé. But Data doesn't care.
who leaves their stuff around: probably the both of them, although Data will pick everything up when he sees stuff out when he isn't tired. If he's tired he'll leave stuff everywhere and just flop into bed, which Naminé will likely pick up while he's asleep/in the Datascape.
who remembers to buy the milk: Naminé because Data doesn't drink milk or anything really for that matter. :|
who remembers anniversaries: both of them; they both have pretty good memories and Data's job is to remember stuff, so yeah. They'd both remember.
who cooks normally?: Naminé because, again, Data can't eat. Although I can see him trying after being urged to and failing rather miserably.
how often do they fight?: hardly ever. And when they do its nothing serious, just like them whining back and forth to tease each other.
what do they do when they’re away from each other?: wait for the other to get back and miss each other. A lot. They are separated a lot but given the chance they probably wouldn't leave one another's sights.
nicknames for each other?: Data calls Naminé 'Angel' every now and then.
who is more likely to pay for dinner?: Data, but I don't think they'd go out for dinner much seeing as Data can't really eat it.
who steals the covers at night?: Naminé. Yes. She would steal the covers. :|
what would they get each other for gifts?: probably simple little things. Data would leave some flowers he's grown for her in her room, and Naminé would draw him pictures or maybe give him old books she'd found. Little things.
who kissed who first?: Naminé kissed Data first but Data followed pretty closely.
who made the first move?: definitely Naminé. it was precious asdfgd
who remembers things?: they both remember things really well. One works with memories and its Data's job to remember things.
who started the relationship?: Naminé~ although I think both of them sort of sensed a mutual attraction early on but were too shy to really act on it until Naminé took the initiative.
who cusses more?: neither cuss much at all, but Data occasionally lets a 'damn' slip. Nothing more than that, really; they just don't really curse.
what would they do if the other one was hurt?: they would fuss over each other a lot and not leave the other's side until they were better. Data would cast Curaga until he was blue in the face and get every medicine and potion imaginable that could help and would look through every book he could find for remedies. Naminé would probably do the much the same thing and would make sure to bandage him up and likely chide him gently as knowing Data he wouldn't tell her that he was hurt until she figured it out because he is stubborn and doesn't like to be a bother with his injuries.