My daughters are young teenagers, so they still live at home with me. I can understand your feelings about keeping the family together, however you define it. I still want to be a husband. I want to be a dad. I want to be a family . . . and so do our daughters. I have no idea how I would be reacting if I didn't live at home with the girls, but I do and so it colors the way I think, feel and act. Maybe LBP's (Left Behind Parents) are willing to put up with more nonsense b/c we have a certain vision of the future we want for our children and for our selves. Maybe we are willing to hang in a little longer and go gray or dark one more time, turn one more 180, or just wait a little longer to see if the fog lifts b/c of that vision. So if we are taking refuge in our children thru the storm, and our patience and DB'ing efforts result in the sunshine and changes we're looking for, then good for everyone.
I'm saying all of this under the assumption that there is no physical or emotional harm being done to you or to your children.
The day may come when I have to tell the girls that I am letting go. I know that they will be dissapointed and it will hurt me to do it. I hope that they see that I will have done all that I could before letting go. I wish you peace in your decision.