One of the guy sent me obscene videos of his girlfriend for talk with me dirty what should I do?

It was really disturbing he found me on comments, he harrased me and did this with the account which has a profile pşcture with his girlfriend. That’s extremely disrespectful. Guys help me. He has private account. I want to let her girlfriend know. That’ so disgusting. Just empathy. Please what should i do?
One of the guy sent me obscene videos of his girlfriend for talk with me dirty what should I do?
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