My girlfriend moved closer to me, but I want to break up with her over some texts from 8 months ago.
What about the texts make you want to break up with her?
In them she talks about how she doesn't like hanging out with me here, and I think that's unfair.
I'm sorry that she feels that way. But it sounds like you were in a long-distance relationship until now. This was always a possibility seeing as you couldn't spend a lot of time with each other before hand and didn't know if you were truely compatible. Breaking up for that reason is fine but you should try to get to know each other better next time before someone commits to a move.
I'm just glad it's over, she's stupid and I just don't care anymore.
While you're reacting a bit harshly, I do still agree with your choice. If you don't want to be with her anymore you don't have to stay with her. You should both move on, otherwise you'll just end up unhappy.