My STBXAH too is a good person with a huge heart who has made such poor decisions that he is ruining every relationship he's ever had in his life. It's so hard to watch and I feel helpless. I hope the guilt subsides for you, because you are doing the right thing for yourself and your daughter. You shouldn't feel responsible to care for someone that isn't caring for you. He is not by any means putting you and your daughter first and he's definitely not feeling responsible to care for you. Sending you so many hugs and good vibes...I know how heartbreaking this all is. I'm smack dab in the middle of it myself.