i understand what you mean. MY w and I used to do a lot of things together. Until we had the baby. My attitude sort of changed from equal partner to full on protector of the family.
However my wife did not want to be a stay at home wife and was conflicted in her role as a mother and a career woman.
I sensed those things and coupled with some key sport injuries i suffered (acl, herniated disk). I felt depressed and through my energy and money into a hobby for myself.
I think that was the beginning of the end. I did notice i didn't want to be around her that much. But i figured i was in a rut and would soon come out of it. She tried to engage me but where i was she did not want to be. I regret that i didn't have the courage to fight as hard as i am fighting now.
Now, even tho we are on amicable terms why would she want to come back to me, knowing what i am capable of doing. (depression_)
I can tell she still loves me, but she wants the divorce to unshackle that expectation. I get that now.