It’s Bekahchu!

I have a question, so there is a guy i used to like. Well, i stopped liking him, and at a party, one of my close friends, eavsdropped on him and he said " I have feeling for her" well, i moved on, and have another crush. But, i think i like him again. And this is high school. If anybody says anything, the rumors will stick for the rest of my 3 years (freshman). And, the boy has a gf. WHAT DO I DO!