DB was not a failure because you said it yielded you a much stronger bond with your children. To me that sounds like a grand success. DB is about you.

It is not your job to affect your W's piece of mind by fixing things. As per her request she is choosing to be a single parent and homeowner. Honor her request.

She has the best of you when she is treating you the worst. Be the best for you children but not for her.

She has no idea what will be missing because you are still offering her all the perks of a marriage and partnership. THe last thing to try is STOP doing all of that stuff.