Coworker hot and cold… how to move on?

Rejection severely triggers me.. it sounds conceited but it really comes from never feeling good enough or chosen and I thought I would get better with age especially after I’ve been putting myself first by working out and doing things to feel good…

I have a coworker who is 2 years younger than me and I’m attracted to him but he seems hot and cold and I thought we would have hit it off in a friendly way by now because we have a lot in common.

He seems a bit cool with everyone else idk… but I just feel blah … I don't know why it’s making me feel a certain way

today we exchanged some words

Coworker hot and cold… how to move on?
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