I'll be honest. I did that to a girl once.
I barely knew her, had met her once, we'd barely chatted online. I maybe had a major crush. Then she announced she was dating someone. I was shocked! I believed I was right for her! Dormant feelings that had been ebbing away suddenly flared into live, and my response was "Um, but what about us?".
She, quite rightly, asked me: "What do you mean 'what about us'?". We discussed it and in the end I accepted it - not because I understood I was crazy and that she really didn't have any feelings for me, but because I begrudgingly accepted that if I cared about her, I would care about her happiness more than mine, and therefore I should give her my blessing to keep seeing this other guy.
Without even being aware of it I allowed a passing infatuation to develop completely inside my mind to the point that I was sure she felt the same way even though I had given her no reason to think I was interested in her or been given any indication she was interested in me - and when she became unavailable I became obscenely jealous.
I was young and foolish. I grew out of it. Your guy friend will grow out of it too - explain to him there's nothing between you and give him a chance to redeem himself by not being a creepy jerk. If he keeps it up, cut him off from you completely.
I barely knew her, had met her once, we'd barely chatted online. I maybe had a major crush. Then she announced she was dating someone. I was shocked! I believed I was right for her! Dormant feelings that had been ebbing away suddenly flared into live, and my response was "Um, but what about us?".
She, quite rightly, asked me: "What do you mean 'what about us'?". We discussed it and in the end I accepted it - not because I understood I was crazy and that she really didn't have any feelings for me, but because I begrudgingly accepted that if I cared about her, I would care about her happiness more than mine, and therefore I should give her my blessing to keep seeing this other guy.
Without even being aware of it I allowed a passing infatuation to develop completely inside my mind to the point that I was sure she felt the same way even though I had given her no reason to think I was interested in her or been given any indication she was interested in me - and when she became unavailable I became obscenely jealous.
I was young and foolish. I grew out of it. Your guy friend will grow out of it too - explain to him there's nothing between you and give him a chance to redeem himself by not being a creepy jerk. If he keeps it up, cut him off from you completely.