SUBREDDIT: r/relationship_advice
TITLE: [19/M] Confused hookups with ex - what does she want? [19/F]
POST: My ex-girlfriend and I broke up almost a year ago (halfway through our senior year in high school) but stayed in touch through a mutual group of friends. She started dating a new guy almost immediately, and I moved on.

Almost a year later, we're in our fall semester at uni, and we've hooked up three times and she's texting me almost everyday. She told me that she broke up with the other boy, but he cries to her and they're together again. This conversation was after we had casual sex for the second time this semester, so the mood was intimate.

I'm extremely confused by this. I wouldn't mind rekindling, but I told her that I'm indifferent to it happening and to make a good decision for herself.

What I'm asking for, is what is the right thing to do in this situation? I'm an accomplice to cheating, and the one that normally engages our hangouts and casual intimate moments.
TL;DR: 
Don't date a girl for a year, she cheats on current boyfriend with me, they break up, get back together, still hooks up with me.