Bob, do you have a large support group "cheering" on a D as opposed to a large support group helping you resolve your M problems? (Which, by the way are not abnormal.)
You try very hard to be the victim. People who love us want us to stop hurting. If you have worked as hard to convince them your W if abusive as you have worked to convince us I can see your dilemma.
Do you feel your W has to make the big moves so you can justify saving your M to your friends and family?