I was cheated on 18+ times by my ex. He was very untrustworthy. But now I feel like I can’t trust any guy to be loyal.

Recently I’ve been talking to a guy who’s super sweet and I don’t think he’s anything like that, but I still think what If he’s talking to other girls like that too?

He has said how bad cheaters are and he’s been cheated on. But I can’t help to think it. What do I do?