<human>: Can you condense the text into a few key points?

Me-22m her-20f

Dated a girl for 20 months... She was out of the country for 10 weeks (early May- late July)... I haven't seen her since she got back but I broke up with her about 10 days ago. We got along very well, but the physical / sexual attraction isn't what it should be and I'm only 22. She isn't ugly, but I have been told forever that I can do better. Anyways with her being gone all summer, I started going out and having fun, things I didn't get to do when I was with her cause we hung out 24/7. 
Well I'm talking to a new girl who she doesn't know about, and My ex just got into town and wants to talk for a couple hours so she can get closure. She says she still loves me.

I don't know what to do because I don't want to accidently give her the idea we can get back together, and I think this whole thing will be super awkward. I really did care about her and love her and i invested my last year and half of college on her, but I feel like I made the right decision by ending it.

Should I hang out with her for a few hours? Or is that a bad idea?
<bot>: Dated for 20 months, broke up two weeks ago, now I have feelings for another girl. Ex wants to meet up for a few hours to talk, do I do it?