<human>: Can you summarize the given text in a few sentences?

When me and my GF started dating, she had just been seeing this other guy, whom she described the end of the relationship as whenever he touched her or something like that she felt like "ughh". 

She told me at the start that this usually happens after 6 months whenever she really starts feeling vulnerable because it's easier to shut someone out than to really let someone in and become vulnerable.

Now I have to move 3 hours away and she can move there in about 6 months, we talked about moving in together and agreed to do that.
However ever since that (the past couple of weeks) she has begun shutting off emotionally as she thinks I might cheat on her or not have time for her anymore, so it's easier to be the one shutting me out. This means that she doesn't want to have sex either, and say what you want, sex is an important bonding part of a relationship.

I have no intention of doing so at all, however as we had to become more serious in our relationship, she has begun shutting me out and says the "ughh" feeling is sort of returning and that she can't really fully relax with me there right now.

We are talking about it and everything, but it is really hard to just slowly watch her neglect me, especially because just before that I realized that she really means a lot to me.

Is there anything I can do in order to make her open up or anything like that?

(I'm moving in 2 weeks)
<bot>: My Gf has begun shutting me out both sexually and emotionally as she thinks i might cheat or dump her due to me moving away for school.