Why do I feel bad about this?

This guy at work fancies me. I arranged to meet up with him (I feel bad about cancelling) but I cancelled then I went out with my friends instead. I couldn’t face him so I told him not to talk to me. He is always sweet to me he gives me chocolate or compliments me (it’s genuine) I had to go to the hospital and none of my friends visited or checked on me only the guy from work. He is loyal to me. He caught someone talking bad about me and he stuck up for me (He doesn’t know I know)

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When I told him not to talk to me he stopped talking so I moaned to his boss that he wouldn’t talk to me. He is a sweet guy but he is a bit of a nerd.
Why do I feel bad about this?
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