My crush found out I grinded on another guy, how do I fix this?

So, I've been low-key talking to this guy for a while. And it's a pretty flirty relationship but he hasn't asked me out. He hinted to us going out but didn't actually initiate it (I think it’s because he’s shy). We had a mutual friend who I asked to find out if he liked me. My friend told me he said that he was really into me. Anyway, a couple of weeks ago, since he wasn’t making a move, I kind of got bored and did something I kind of regret. I went to this nightclub and there was this guy from my school (college) and I ended up grinding with him for like a minute. it was a one time thing and we only danced, it literally meant nothing to me. Anyway it got back to the campus and for some reason everyones talking about it and I think it got back to the guy I like. I say this because his whole temperament towards me changed, he’s no longer flirty, and doesn’t put in effort to talk to me, how do I fix this and make him like me again?
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+1 y
grinding as in twerking, you know typical club activity...
Updates
+1 y
Also he had been talking to other girls while we were talking.
My crush found out I grinded on another guy, how do I fix this?
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