what with this virgo girl?

I am a sag and she is a virgo, we known each other for 3 or 4 months??_we had a great chemistry and we have lots of things in common. We had everything amazing and I was taking things between us a little fast because I was actually happy, but I always felt she is not giving her full effort into it...like most of the time I was the one who was showing effort in every aspect. I am the second person in her life after she was really hurt by an ex. She told me she moved on from her ex of 2 years, only recently that he came back to her life and surprised her when he went and proposed to her family, since that day she opened up to me and told me how much she hates him and all that yet she broke up with me because she told me she is feeling pressured and that's I don't deserve her because she still have some unfinished business and she respect me enough that she wanna end it this because she doesnot have strong feelings or they r —wrong feelings??, she has been on and off for couple of days??_ I told her go and sort yout stuff out and I will wait for you... she kept saying move on, I met u at a wrong time and u don't deserve this, she wish she was single to deal with all her stuff first then to be in a relationship withsomeone new and stuff, however I insisted to fight for her, she cried then the next days she said she will fight for me, then the third day she wants out and ended it so at that time I promised not to talk or to say anything until she figure it out??_. Now we don't talk but she did not delete me off facebook and she has put pics up on her bday that she is happy and not as stressed or pressured as she was saying??_I am not sure what to believe anymore
I was really happy with her the last couple of months, I even felt she was happy as well, I don't think she was faking it..
I really wanna know if she will come back or shall I move on or what exactly? Help will be appreciated