You are still in the very raw state and will be for a while longer. Imagine a burn victim who is in the hospital- alive but undergoing painful treatments and just trying to grow a protective layer for survival sake. That´s where you are. The burn victim is not thinking about hobbies, travel, sports. They want to avoid breaking down and just want to have the ability to do self-care. All that to say that it will take you at least two years to find your center again whether you remain a couple of not and it will take longer than that to feel that your joy tank has refilled completely and that she no longer is a source of daily emotional pain. If sleeping in a shared bed miles apart causes more pain than sleeping in your own bed, you can modify the sleeping arrangements. The way it is now you are subjected to rejection even while sleeping- not healthy.
You are going to need to focus on YOU to get through wherever this takes you. That means sleeping well, eating well, time in nature, exercise, some sort of community socializing BUT NOT straying yourself for female companionship. Keep tabs on finances- joint accounts, new credit cards (yes they will get them and being married you will be on the hook for charges), extravagant purchases, IRA withdrawals, etc.
Try your very best to NOT ask questions as you will likely get lies for answers and that just creates a bigger mess to deal with.
Find an expressive emotional outlet- music, art, etc. and a physical outlet- running, swimming, yoga and a spiritual outlet- church, meditation, etc.
It´s a marathon not a sprint.