<human>: So a few  years ago (I think about 4?), I was mutually in like with a girl. Let's call her Tiffany. Because fuck it, it makes things less confusing. I was pretty oblivious to all of her feelings and she was sort of going through a bad break up and I was basically her shoulder to cry on. I may have been a semi-rebound as well. But I was oblivious to what was going on so nothing happened. 

Then a year after that (3 years ago) feelings were revealed when drunk, we made out, things got awkward but we stayed friends but sort of drifted apart.

Then I dated someone for the past two years and we sort of fell out of touch because my gf was sort of weird about me hanging out with someone I had feelings for at one point.

Then my gf broke up with me. That was 2 months ago and Tiffany was one of the first people to start talking to me about it all. Asking me how I was doing and if there was anything she could do to help me get through the stuff.

Now recently (as in like... a few days ago) Tiffany broke up with her boyfriend. She was with the guy for like... six months. Now. My question is: Would I be a dumbass for trying this again, for a third time? I know getting back with an ex is a bad idea... but I don't feel like she is an ex. We just sort of kept crossing each other at bad points in our lives and it feels like both of us are in much better places now...

Can you succinctly summarize the text in 1-3 sentences?
<bot>: kept running into a girl quasi-romantically, and not sure if I should give it a go for a third time.