This girl from my university and I are good friends since a couple of months now. A few weeks ago, we went out together and came back really drunk, and a long kissing session ensued after that. The next day, we went out again and this time we made out in an empty train. A couple of days later, she told me that she'd lost her virginity to a guy already, and that she doesn't want to start a relationship with me because she's still emotionally attached to that guy.
I felt a little hurt when she told me this, and now I'm finding it difficult to get her out of my mind. I find myself thinking about her even when I don't want to.
How do I forget her? We see each other in university occasionally and it's difficult for me to avoid seeing/meeting her altogether.