<human>: So, I'll give this some context. I've known this person for about 5/6ish years. We were in college together and were in the same major together. Let's call her O. She ended up staying at our Alma mater for med school. I ended up a few hours away at graduate school. I was in a relationship with a mutual friend of ours for all of college. Let's call her J. That relationship ended about two years ago when we all graduated. 

I've felt like I had a crush on O for some time but just never acted on it. I mean, even when I was with J. That wasn't why we broke up or factored into that decision. 

Now, it's been two years since J and I ended our relationship and I feel like my feelings for O are not simply rebound. I want to tell her but I'm not sure if I should. I have been flirty with her and she has, I think, with me. 

I need advice on how to proceed Reddit.

Can you summarize the given text in a few sentences?
<bot>: I have a crush on a mutual friend of myself and my ex and want to tell the crush I like her. Do I proceed?