how do i take his actions?

i used to like this guy,he knew,we kicked it for a while just as friends,he ended the friendship suddenly even though i told him i just wanted to be friends i figure him having a girl at the time had alot to do with but still, he didn’t confront me on it and knew i didn’t want anymore than friendship and i told him i don’t want me telling you i like you ruin our friendship, he told me that would never happen so we fast forward a few months,my friends says he is always watching me or even trying to listen to my conversations or smiles at me when i’m not looking, i even mentioned that i got taken out for my birthday,but never said who,it was just a friend, i was told i caught the go to h#@$ from him and when me a friend were talking about the movie and how my birthday went and about being taken out, she said he got the o h@## no look on his face and frowned,so later on that day, he acted like he was all mad,we don’t talk anymore,he cut it off and so i’m ignoring him now cause he told me to leave him alone, one of his friends asked him what was up between me and him and he said man i don;t care which way this goes i’m leaving anyway, someone else was observing him and said his arms were crossed and he was slouched over and had that pouty whatever look on his face, ok so he seems to be getting all worked up that i ignore him completely i talk to his co-workers and ignore him or won’t even look at him, and since i said all of this about being taken out,he seems pissed, he ended this friendship and so now what his problem,yeah i was crushing him, yeah he knew it, we never dated or anything,he was just a guy i loved to hang out with,, so what now i am trying to figure him out