The kids seem to know quite a bit that Daddy is the one that will do what ever it takes. Daddy helps them get dressed, makes breakfast, comforts them. I'm not saying W won't, just not as readily. To often it's a matter of focus. Quite often, my focus is on the kids and their needs, not necessarily the same for W. I am a strong believer in working to build love, almost to a fault.
It appears to me W likes to be loved and taken care of, but not overly willing to reciprocate. Not that she can't, I think most of it has to do with her present state of mind. I can't fix her, so I'll work on myself, give the kids all I can and do it as there is no tomorrow. After all that might just be the case. Love like there is no tomorrow.