If we're going to talk about LL in the 3rd person, I think it's easier and more comfortable for him not to be "in charge". If W makes the decisions and sets the tone for what will be done and what will not be done, he can follow. He's not responsible for making bad decisions, or enforcing unpopular choices. It's just easier not to be primarily responsible.
I think he's perhaps more afraid of stepping up and being in charge than he is of W, and I think that's what drives W nuts.
Perhaps, but it's really an exercise for LL to think through and answer. If YOU answer for him it just facilitates and enables more of the same behavior you are describing, which he acknowledges is contributing to his marital problems and is something he claims to want to correct/improve upon.
-PM
M:12y - BD:12/11 - D:6/13 - 4Ds
"The ultimate measure of a man is not where he stands in moments of comfort and convenience, but where he stands at times of challenge and controversy." -MLK Jr.