it's not going to work, she doens't understand that people have things to do other than with those they live with. when she lived with her fam she did sit with her parents/siblings all day and do thigns with them? no she prob spent a lot of her time in her room watching tv, listening to music, talking on the phone, etc. Same thign applies now just cuz ur her gf doesn't mean you have to entertain her. some days you 2 will ending up doing everythign together, other days you guys might be home but see each other for 5 mins. that is life.
she could watch tv, go on her own comp, talk on the phone, invite other friends, go out, cook, clean, sleep, pretty muchanythign else while you do yoru own thing. if you want a movie on tv she doesn't need to join you just like you don't need to join her!
time together is greatbut it is the time apart that not only keeps you sane but makes you appreciate the time together. I hang out with a girl and i love her, recently we spent 3 weeks together pretty much, then went to vegas for 3 days, then big bear for 2 days, GREAT times but i want my alone time too, have been playing WoW, watching tv, working, haven't seen herin 2 weeks now but she has work too, school, her finals are here, etc. we miss each other but you know what, it's life.