I don't want to step on Mom's toes, but I think what she is referring to (and what has come up on may occassions) is the "In Love" feelings. Yes we can talk and we get along quite nicely but there is a feeling that 'something' is missing. Yes, the dialogs help us connect on some level, but they don't give her the "I WANT YOU RIGHT NOW" feelings.
I want her to want me, and for her to feel engaged and fulfilled by this relationship, she wants to have those feelings of wanting me. She wants to have the feelings that I have for her. I can more easily relate to it being a sexual feeling, but it is more than that for her. That is just how I best express my emotions. Neither of us wants to just coexist and put up with each other. We want it to be meaningful.
Again, I may be way off base here, so I'll now give the floor to Mo2C.
