Hi guys

So, there's this girl at university I'm really into and started speaking in october, and have got with her on nights out a few times now. But she went weird, and when I confronted her about it she said she's been hurt by a previous relationship and has trust issues because of it. I kept my distance for a bit and things started going well again, but when I asked her out for an official date she put it off a couple of times, which led to an argument and didn't speak for over a week.
Then she apologied, things go well, get with her all night before the end of term, and now we're not talking loads again (I'm trying not to get too close again in case it scares her away).

I wondered what I should do to be with this girl, I'm really into her but feel confused by her. Any tips would be much appreciated, thanks!