Ex-girlfriend

My girlfriend of a year and I went to different colleges at the start of this year, we took a short break to see how things were and then both decided we would still rather be with each other. the first semester went great minus the few typical arguments here and there, but overall it was good. I was totally in love with her. when we were both back home some problems came up but nothing serious, we worked through them. towards the end of the break we had a couple really bad fights, mostly becasue she was having family problems and took them out on me (which she later appologised for). towards the end I got extremly drunk with a few of my very good friends from home, i passed out in one of the bedrooms, only to wake up and find a girl I knew trying to give me oral. the whole thing was extremely strange, i hadnt given the girl a reason to. the next couple of days i didnt know what to say to my girlfriend, she was out of town, and ended up hearing about it from someone else who did not know how it had really happened. The break up was very ugly, I sent her an e-mail explaining what had really happened, and left it at that. We talked here and there for about a month or two, and then started talking much more often and cleared a lot of things up. its been 3 months since that happened, we now talk every day and talk every so often. we have hooked up quite a few times since, and everything seems to be going ok. She says she doesnt know if she can ever get back together with me, and that she doesnt plan on being back with me any time soon, even though we see eachother every week or two and usually end up at least kissing every time, even having sex a couple of times. I dont know what to think about it, she or I arent getting with, or trying to with anyone else. we talk several times a day and still have great chemistry. Few of her friends even know we see each other, she says shes still deciding what she wants, and im fine with giving her more time, I can tell she still has very strong feelings for me, i just dont know how long i can give her without setting myself up for total heartbreak if she decides she doesnt want to be with me. Is she considering getting back together with me? should I just move on?