So I met someone and we hit it off immediately. He is really sweet and loving and very very nice person. But he just wrote to me a message saying that he is in fact married. I dont know what to do or what to say, I mean I don't think I should in any way continue this, it is not fair to the other lady, but I want to say it in a way he understands that I think nothing bad of him (at the end of the day, it is up to him to feel bad and not up to me to slut-shame him). What do I say? How do I say it?