OMG I am in Idiot

So yeah I thought we were different. He was married and I was married, neither one of us were extremely happy nor we were unhappy. We just came together, clicked. I thot he loved me, i knew i loved him. This went on for over a year, I was ready to leave my husband for him, he was ready to leave his wife. Well Monday he went to her with divorce, today he has come to me with the news he is staying. My heart is broken, right now I dont think he deserves either one of us. I dont want him to be happy at this point, i know we would have been happy but as I have read i realize im not sure i could live with the guilt of breaking up his marriage or mine. Now I have to pick up the pieces, im done crying, I do still have feelings for my husband so I hope I can make it work for our daugher. I am hurt and devastated but I know i got what i deserved. Please ladies dont do this, 9/10 it will never work out no matter how much you love them. They will always have a wife and I think men have more of an attachment, I got close but he still couldnt do it. He doesnt even tell her he loves her but he feels he should work it out with her. Whatever, I am about go and tell him to leave me alone. Thanks, this helped me out tremendously.