<human>: I had a 3 month "non relationship" that ended almost 6 months ago. We saw each other roughly once a week, had fantastic sex, and hung out with each other's friends. I wanted exclusivity but he was vacillating between not wanting a relationship at all and wanting to make things official with me but very slowly over some time. He did a few things that made me uncomfortable: made comments about dating around and being happy being single, put off making real plans and having real dates, etc. I became impatient with his indecision and ended things. Emotionally and suddenly without discussing the issues that were bothering me. He told me that he had thought we were moving towards something more official but now after my emotional outburst he just wanted to move on. He said he could not be friends with me because it would slow him down from moving on. I defriended him from facebook to help me move on.

This past weekend I was at a party where I ran into a couple of his close friends. Friends that he sees every weekend and that I spent some time with through him. One of them was a bit drunk and shamelessly flirting with me- asking me to dance all night, following me around like a lost puppy, etc. I decided not to pursue things that night but a few of my friends have told me that I definitely should have, should reach out to him this week, and that I shouldn't let a relationship that was never serious hold me back. It may have been short, but it felt serious (to me at least) when I ended things because I had serious feelings for him. I have no idea what non-ex's feelings are/were.

What are your thoughts on this, reddit? Can I pursue a "non-ex's" friend 6 months after the fact? I would think non-ex's friend would never have hit on me if non-ex would care, but I do not know for sure. I'm not sure if I would react kindly if one of my friends flirted with non-ex. Part of me still holds a torch for non-ex and wants to reach out and say hi to him after seeing his friends.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Hit on by the very close friend of a guy I was seeing but ended things with 6 months ago when he could not decide if he wanted to be with me. Would pursuing the friend be a terrible idea?