If we didn't have any kids, I would have cut her strings a while ago. However, we do have kids, so they are my first priority. Showing them how a father treats their mother with love and respect is the model I want to show them so that they will want the same in their relationships.
Stuck, you are a great guy. This is early on and I think you are right to hang in there.
On the physical stuff, I would go so teeny tiny with it when you do. Not even a foot rub. A brush by her or some subtle contact...
How's your R with the kids? Weird as it sounds, it turned me on when H was super attentive super dad with the kids. Really endeared me and made me feel like I was with a "man" rather than a boy. Or, he would handle something with the kids "just right" (I mean with energy and imagination).
Just musing here...
Curious, have you ever in a very manly way looked at her and told her that you are not leaving her, that you are fighting for this marriage, that she is the love of your life and the mother of your children and you are going to do what it takes AND that you hope she steps up too.
I'm NOT saying you should, but, I always wonder what would have happened if my H had...