The not seeing her and the sex, are these things that you could initiate conversations with her about? Is she there yet, open enough to talk? If not, please think back to four months ago and realize you are in a better place then you were then. You have been through SO much, just move slowlee and TRY not to get frustrated. This IS a conversation that you need to have, but you cannot rush it. Is there a MC in your future? Have you read Michelle's Sex Starved Marriage? There are some good points in there for the high libido and the low libido and it might help you cope. If your W could get to a point to understand that sex is a form of communication for you that would be great, but if she is still hanging on to the Me, Me, Me, you could be in jeopardy of some backsliding.
Hang in there. Love you, man.
Relax. Appreciate. Be calm. Laugh. Enjoy. Be secure. Be loving. Be loved. Don't personalize. Don't ASSume. Accept. Be grateful.