OOOOH and i actually have one more critique... I don't think you should say
"Influence your Boyfriend's personality by choosing what pastimes and jobs he takes; his appearance and voice lines will change accordingly"
in such a way, since it kind of made me think the boyfriend will get a personality no matter what mix of personalities they build up. Since in actuality you have to choose certain things in order to get a personality other than base boyfriend so yea... I feel that is a tiny bit misleading. Also I feel the whole career thing could have a bit more impact in the story and actually i feel the overall length of the story could be expanded.. so yea, sorry for all the critques but i really wanted to since i like your concept a lot.