I dated this girl a couple years back and from the start she was not a good gf. She lied to me several times, cheated on me several times and overall my trust was not there for her at all. A couple years has now passed, and I ran into her the other day. We talked for about 1 hr, and she apologized and said she is not the same person anymore and what not. She wants to hang out with me, but i feel like even being her friend is a waste of time? I want to believe her when she said she has changed, but in the past she lied to my face so many times that i'm just thinking even her friendship is a waste of my time.