Well actually I'd ask a little more of you

. Instead of pretending to not care you should try and actually not care. She is one of many, however interesting she cannot be your primary target at the moment. So, if you enjoy talking to her -> keep talking to her, if you don't -> don't. Really what I'm saying is you don't need to reduce everything to PU sometimes (or very often) just go with your feelings (actual feelings, not that horny teenager in all of us wanting to get his needs tended). If you think she is worth the effort and you enjoy keeping contact please do, if not she is 2h away and you shouldn't have a care in the world.
Len