If shes not into games, then don't try and make her. Get out, go for a walk, go see a movie, go to the park, go on a roadtrip every now and then, just get out and do stuff outside the house, and on top of the, outside a TV.
Now if she does like video games, you can't ALWAYS make that your primary form of interaction, chances are it won't work too long. You still have to get out and do things outside the house. If you know how much stamina your girlfriends gear has but not where she grew up, heres a giant facepalm to you!
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.