What to do ? :/

This few days,, I'm thinking of giving up on Lemon,, but.. is this really the best decision.. ? 

He's the best man ever! :') i don't wanna give this feeling away.. but I know, there's no more hopes for me to be together with him,..

i'm afraid, the more i tried to get him, the more he got annoyed by me and he's going to get rid  of me again... :'(

I just don't know what to do with my feelings..