How did i get here?

My husband says he loves me but, I am starting to doubt that each passing day. When my husband first came out as wanting to become a women, I fell to pieces not knowing what was to come. He assured me everything would be okay and nothing would change between us. As I came to see how truly he was keeping to his word, I began to stop panicking. Then, months later he wanted to start going out more with his transgender friends and I didn't want to be the annoying wife and say "No" so I agreed. Not long after that it became every week and almost everyday he would become a she. It has become exhausting to continue to pretend to be okay with this. So I began to say something and the response I got was disturbing. He quickly stopped coming to me and would stay out longer and longer till 12pm the next day. I asked for a divorce and he pleaded with me to not go threw it but I feel so alone and it feels impossible to accept this all. It has seriously drove a deep wedge between us and our communication. Our sex isn't nowhere as much or as good as it used to be. The sad part is we have had a open marriage for 2 years now and when I say anything about not wanting a open marriage anymore it seems to go threw one ear and out the other. I cant come to grips with the point of our marriage is because we don't hardly have sex and our communication is not very good. My one problem is he is military and we are 24 hours away from home. No money to even get there and there is still 3 years till he can get out of the military. I see all these obstacles in my way to make it literally impossible to get out of this. How did I get here? Everything seemed to perfect in the beginning with a future to die for in my mind. We were suppose to have kids, go to school and be the very best we could be and all of that changed since he came out as wanting to become a actual women. Its much easier to throw in the towel and leave this earth but with god as my witness I know that is not possible. I don't know when things will get easier but for now I don't even know where to begin to see the light.