She invited you back into the MBR? That is great, and shows she is trying to get to a better place. My advice to you is to take things in the bed very, very slowly. And if for some reason you hit another snag, you should NOT leave the MBR. Think of MBR as meaning "Marital Bed Room", so the one wanting to save the M should always stay in the MBR.
I suggest that you use this time for pillow talk, cuddling, or if the mood is light........being playful. (Depending on her mood, as to how cuddly she wants to get). Since you've been wanting to have sex, she may even initiate it......to show good faith, so to speak, in doing the work to repair the M. But then again, it may be way too soon for her. Have no expectations and don't push. If you will take time to be emotionally intimate before being physically intimate..........I think the rewards will be worth the wait.
If she's for real, I have to say it sounds good, although it seems rather quick. It's a good step in the right direction, and it may be all she can do at the moment. Just remember there may be a few setbacks or you may hit a place you think the R feels like walking through jello.........but stick with it and you will make it.
Are you working on having fun times as a family or with other groups? Don't breathe down her neck all the time, but I think having something on weekends (especially) to keep busy, and hopefully, it will help her keep her mind off the OM.......is important. She doesn't need to be going on a girls night out or staying overnight somewhere without you, until after she has fully gotten through the withdrawals.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!