I have been seeing this girl for about a month now. We are both in the same graduate program. In May I'm moving across the country for about 6 months for our program's internships. She is staying here. She knows I am moving away. We've been having a great time, and the sex is awesome. I've been waiting for her to bring up the subject of the move. I've talk about the move indirectly a few times, and she gets this sad look on her face. Should I bring up the discussion of what we are doing together, or should I wait for her to say something?