Delic either has to do it, or they eat out. But I could see them eating out a lot since Erika enjoys being around Delic, AND other people at the same time. Alone time is fight time.
how often do they fight?:
ALONE TIME IS FIGHT TIME. A lot of the time it's more teasing than fighting, but their brand of teasing certainly LOOKS like fighting.
what do they do when they’re away from each other?:
Erika hangs out with the guys; Delic spends time at the club or music shops looking for the latest aural developments.
nicknames for each other?:
Kitten, and Rizu-chan (named after the Japanese word for RHYTHM, which she never told him)
who is more likely to pay for dinner?:
Delic. If he didn't pay, she'd run out of the restaurant and ditch him with the check. Just to see him sweat.
who steals the covers at night?:
They both do. Erika never really NEEDS the covers, but if they can frustrate or annoy the other they will.
what would they get each other for gifts?:
Horrible things. Horrible, awful things that SEEM like great gifts until you really look at them. Then you realize that the anime DVD's have all the sound ripped out, and the headphones were caked with itching powder.
They both do. Everything. They both remember every word and never let each other live anything down.
Maybe Erika; Delic is a smooth talker and doesn't resort to verbal accouterments.
what would they do if the other one was hurt?:
Erika kisses Delic in a fit of excitement; later insists that she was only after his gum.
who made the first move?:
Erika makes a move in a fit of excitement, later insists that she only wanted in his pants.
who started the relationship?:
I think it happened without either realizing it, and neither one wants to be the one to break it because that would be giving up and letting the other win.