What should I do in this situation at work?

I had a boss play around and tell a guy that I liked him and that guy didn’t know it was a joke and now he’s starting to act off at work by being extra nice and he added me on social media. I’m very uncomfortable. I never showed any interest in him. Just the occasional hi and thanks.

it’s just triggering because when I was 18 at the workplace an older employee starting saying sexual things. Im just getting flashbacks and hope the situation doesn’t get like this. Im always reserved so I’m not sure how to go about the situation. I usually just ignore the problem and hope it goes away.

What should I do in this situation at work?
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