My boyfriend's best friend made a pass at me.

At first I thought it was all in my head. But it happened twice, I am not really on a comfortable level with him because he is very vulgar and says creepy things. Anyway he flat at told me that I am hot and we should make out. Then he laughed I also laughed nervously. He is a lot older than my boyfriend and I. Like I am 18 my boyfriend is 19 and he is 25. I don't know how they met but this guy is to catch a predator creepy. So what I am asking is should I tell my boyfriend? They hangout a lot I hate drama it makes me anxious. Please help me thanks!
My boyfriend's best friend made a pass at me.
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