Ghost, my H and D barely speak, and when they do it is so awful- all they do is fight and they are both so stressed about it. My H has given up on her, this is what he was saying pre-BD, kept saying "I hate her, I can't live with her" and still now, he just says all the wrong things and does not listen to her. He has given up on her, and out of all the things wrong between us, that is the one thing I don't know that I can forgive.
What can you do today to improve things with your D? That is the R you should be working towards saving, not your M right now. Talk to her. Maybe start small and work your way up. Ask her about her horse. Can you go to a family therapist with her? She needs her dad!