This story is as old as this world:
“I am married” BUT sleeping on a couch, my wife has an affair, we are about to be divorced, our marriage is falling apart, we are only married on paper, am on and off, my wife doesn’t mind, things are not great between us etc etc etc

When a man says he’s married, that’s all you need to hear. Not the rest of the bogus and likely a lie he’s using to hook up with vulnerable women. You don’t know this person or his wife so how do you know if what he says is even remotely true

There is zero wrong to befriend married men if you also know their wives and they know you and know about you. But it’s obviously going to be a “secret” friendship. Of course if you both feel like you have so much in common that you really do want a real friendship you can tell him next time you hang out, you’d like to meet his wife. He’d likely block your phone number after that suggestion. Men don’t go to bars and casinos to drink and party in order to make friends but again if he’s an exception, ask to meet his wife

If he gave you his number, block it. Delete. You are in danger of finding yourself in a very bad and potentially dangerous situation

It’s good you go out and socialize but since your separation you keep meeting unsavory questionable people, both men and women. They sense vulnerability in you. Please be more careful