He already proved himself to be a liar

He broke your trust and deleted the texts (this tells me this isn't the first time he has done this)

He is going out with this friend and meeting hot girls as he requests them to be

He is staying out late at night in unfamiliar locations

He is friends with a known cheater

He is leaving you and your baby at home while he is doing all this.

I would say suggest going out with the friend and your bf and help wingman (females can help too).

I am not buying the wingman story. Either the friend is a bad influence or they are covering for one another. I wonder if the friends ex knows more or has seen anything from your guy.