Don't try to banish him anywhere, but do work on detaching.
That isn't hating him or maintaining anger so much as always paying attention to the fact that he's him and you're you. That his feelings are as valid to him as yours are to you.
Forget you ever heard the term "cake-eating." If there's an OW then MAYBE you can think of it. But if there isn't, then it's probably better to think of this all as the remnants of your connection that can possibly be very gently massaged back into life and maybe you don't have to hit all the way to rock bottom.
I'm sorry you haven't gotten a ton of traffic on your thread. I'll try to keep an eye out for you. Visit other people's threads to offer support and see what you can learn and you'll start seeing a bit more traffic here.
Hope your ribs heal quickly, ouch!
Me42, H40 D12, S8, S7 A revealed: 7/13 Sep 4/14; Agreed to D 1/15