From the information u giving now could be narcissistic type. Dont see reason why would you want to deal with him.. the more you deal with that type the more revenge he wants, just need to cut him off
Have dealt with that kind at my previous job. He was very social and would get along well with the females (socializing) and I had trust in him because it felt like he's clever funny dude. He had fat wife, 2 daughters, broke, driving garbage car, at his mid 40s and horny af but he could not fvck because girls saw him only as a friend who "gets it" but they never thought anything sexual about him.. they probably felt something about him was just fake but they could not see what because he was manipulative
He was older then me by 20 years and I had a girl at job with whom I had good chemistry and mutual attraction but we kept it professionally
After he came to our company my relationship with her and my boss suddenly changed, I was suspicious that he is the cause but I could not see why
Eventually I noticed a thing:
Anytime this girl would be away he was the the best male friend u can have, whenever she was at work he would put knifes in other men backs, try eliminate men who he saw has more power and talent then he (had no skills) and try to be always close with the boss and the girls
One sunny morning when we met and handshake i looked him deep dead in the eyes, I could not control it this just happened naturally and I thought wtf I'm so aggressive, but then I saw his facial expression and the fear in it and I knew I was right
That day I came home broke cause I realized if i would kept trusting him he could blame me in something that I didn't and I'd would not know how to respond because I would not understand why he would do it