If she doesn't' respond to my daughter, why would I think she's going to respond or even be friendly to me? I don't think about it much, anymore. It's so much more obvious as we now enter the 10th year of our co-parenting journey, that she really is a bit self-centered.
I did learn to love full-on in this marriage. I learned to put my whole soul into the project and come back with the joy of being a parent, and being in love, and being married. This total commitment is part of what blindsided me in the divorce.