I ended up getting back with my girlfriend a month or two later, and I only exchanged a couple texts related to football with the other girl, because I was just playing that situation by ear since it wasn't a viable option at that point. Sure enough, she broke up with her boyfriend and moved back (2 hours away), but that didn't happen til the end of that summer, so I couldn't pursue it then.
Problem is, I never stopped thinking about that other girl. I love my girlfriend very much, but we've been together almost 7 years, we're like an old married couple, haha. I wish things timed out differently so I could have dated her and seen if it was a good thing or if it would have fizzled out. The uncertainty kills me. On paper and on the surface, she's perfect for me: really hot, really smart, really cool, loves football as much as I do. My girlfriend is really hot, really smart, pretty cool, doesn't like football much but respects my need to follow it. I seemingly have more in common with the other girl, but I also barely know her. My girlfriend is like family to me though, we've been through so much together.
I never broke it off with the other girl Because we were never technically dating, I just stopped texting her. I felt like I owed her a conversation though, but wanted to do it in person. I never got the chance. So two days ago I went to the bar I used to work at that I knew she'd probably be at on Thanksgiving eve, and she was. She has a new boyfriend, that was there. I saw her almost immediately, and she got very excited and took me by the hand and led me to another room where we talked. I apologized and explained why I never texted when she moved back. She was really cool and we hugged and I joked that we'd get married if we were both single at 40. But she had said "I really liked you" and "nobody ever blew me off like that", so I felt bad. I could also tell she still had feelings for me, and almost got the vibe like she'd leave her boyfriend if I wanted her.
Now she's all I've thought about since then. Plus I got in a fight with my girlfriend on Thanksgiving so we didn't talk, and all I did was think of how I could be with the other girl. We made up, but I still have the heart flutters. But that's crazy right? And I love my girlfriend, but I can't shake the feelings.