<human>: Long story short, I moved after college and at my new town met a girl through some mutual friends. We ended up hitting it off really well and we hang out a lot, both alone and with other friends. After a while I end up starting to like her for a multitude of reasons, but recently I found out that she's been talking with her ex.  They had been dating for a while and she was ready for a ring, but he was more of a "I was just going to see where this was going" attitude. Turns out he had also cheated on her as well.  We had talked a couple brief times about relationships, closer to when this all happened for her and she often asks my opinions on current events or the future, but I keep getting confused because I know that I can't compete if he comes back into her life.

Can you give me a shortened version of the text?
<bot>: girl I like is talking with her cheating ex, im frustrated about it and wonder why she would keep up with him.