Hope, I want to add that your daughter has been dealing with this reality for a while now, and having honest answers to her questions may be more of a comfort to her than adding pain in her life.
But at the end of the day, you are her mother and you know what's best for her. Trust yourself and make good, loving decisions for her. You are already doing better than was done for you.
And if you don't believe you can do better for yourself in your next relationship than a guy who can act as your current H does, then you know what your next self-improvement task is. Amen to what 25years and Claire said.
Maybell - D7 has been dealing with this for a while, but has become convinced that it is a temporary situation. I definitely expect her to have feelings of disappointment and loss. I think we need to tell her though because she needs answers and because avoid her questions and giving her vague answers must affect her sense of who she can trust. I want to be a person she can trust.
WRT doing better for myself the next time around, I *think* I get that. Some days, I just need reminders