Oh Itschristmasagain the passive partner is hell, in these situations, because there's no chance - none - that he will instigate any change, good or bad. And the entire decision is left on your shoulders.
I blanched when I read your comments about your interaction with your DH. This is the thing that I think has been most damaging to my DCs, who are 17; they have grown up with a passive, tolerant unemotional, disengaged father who is best described as the family butler, and a mother (deep breath, Bucking) who they have seen snipe, carp, blame, sneer, and rage, at their father. What they have not seen between us is hand-holding, cuddling, hugging, kissing, those open smiles of pleasure at meeting each other.
They have seen us working as a team, they have seen their parents express and own their anger, sorrow, guilt, shame, regret, affection, appreciation, and forgiveness - by which I hope, I so desperately hope, they have seen a real relationship at work, albeit not an 'in love' or indeed (shit shit this is hard to admit!) a loving relationship.
We get on - share values, share some interests, he's a good man, a good dad. We're fine, most of the time. But he brings out the worst in me, not the best - and vice versa, I'm absolutely sure of it. The nastier sides of my character get summoned out of me, over and over.
But I'm a fucking coward, and that's the bottom line. Perhaps you are braver than I -