<human>: Give me a shortened version of the text

Well, last night I had a girl [25 F] over and one thing led to another and we started kissing and such, and ended up having sex. I've been unhappy with my relationship for some time now, and the 6 hour distance between us doesn't help either. This girl was essentially the girl of my dreams, she was super cute, all the same interests as me, you name it. 

After spending the day with this girl, it became clear to me just how unhappy I am with the way my relationship is going, and with all of the issues that have been built up over the past couple years. My girlfriend is just not what I thought she was, but I still care about her and breaking up would devastate her.

I know that breaking up is inevitable at this point, but now that I've met the girl of my dreams, she's all I can think about. However, she made it clear she was not interested in a relationship for the time being. I feel trapped in my current relationship, and I don't want to settle for anything that isn't this new girl. I feel guilty and I know I should tell my GF, but I don't know if I can bring myself to. I guess I'm just looking for some advice, anything helps.
<bot>: Cheated on Gf of 3 years, falling hard for this new girl whose not interested in a relationship. Advice?