I'm going to keep it short and simple. He lives the street life, and I think he cheated with a man?

You have some options: 1) ask him, see what he says, and then you have to decide whether you believe him... 2) try to forget about it... 3) end the relationship

Do you trust him? Do you have a relationship where you both agree to be faithful or are you both open to being with others? If nothing else, I would be sure that you are using protection (condoms) if you engage in sex with him.

Are you asking us any question here or are you telling us that your man is gay?

What makes you think he was having sex with a guy?? We need facts.