A man that hid a relationship from you and lied to your face when asked is not a man worth being with. He just mastered lying to your face knowing you would believe him and forgive him. Men will blame everyone , the wifes past, the mistress, the stress of life anything when caught cheating and never accept responsibility. Don't fall for the excuses HE vowed to honor only you and laid with her. He gave her part of what was to be soley yours. You dont need a cheater he needs you. Walk away.