I've had an horrendous year that has left me feeling generally low. This was finished off with my partner cheating on me with his ex a week before Xmas. She isn't a very nice person and has found herself homeless and not well mentally from what I can gather. We don't live together, I'm not financially reliant on him. it's not the first time he has cheated. My children are at the point where they can't stand him and are only tolerating him because of me. I know I should tell him to get lost and feel so weak and pathetic but I can't seem to do it. He drinks to much and doesn't add alot to my life really. What is wrong with me that I'm unable to cut ties.