Do I confront this guy?

I had a thing with a guy, not dating or anything, and then that ended when a guy and I kissed at a party.
Now he’s been telling all my friends and all his friends I’m a horrible person and that everything that was bad between us was my fault.
He told everyone I can’t kiss (he tries to devour your face ahahah)
He’s told everyone I can’t dance (we went to formal together)
He’s told everyone so much other stuff that I’m bad at that is completely untrue.
He doesn’t think I know he’s said all this and still acts like he’s my friend. He messages me often and I don’t know what to do.
It’s hard to cut him off because I see him all the time with us having the same friend group.
Do I confront him about it?
Do I confront this guy?
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