I am so sorry and I do know what you must be feeling. I was once just like the girl that you so deeply love. I left the love of my life for three months...no calls, no visits, no emails, nothing. I totally cut him out of my life because that's what the Elders told me that I had to do for Jehovah to forgive me. I was in hell. On the one hand, I didn't want to leave my family or all the friends I had known growing up my whole life. On the other hand, I didn't want to leave my honey. I didn't want to live in a world where no true unconditional love existed. I was deeply depressed and even attempted suicide several times.
Eventually, the love of my life emailed me a nasty drunken letter claiming my religion was a cult and that I was brainwashed. Well, I had to defend the "truth," so I emailed back defending myself and my religion. This ended up opening the door for more communication and eventually he introduced me to Crisis of Conscience and sites like this one, although not this one in particular. Now, we are going on 2 years happily married. It was not easy, and I would never wish that hell on my worst enemy.
I don't know if your story can have such a good ending, but I think that if it's meant to be it will find a way to work itself out. I am so sorry this is happening to you. My heart is with you and even with the girl who had to give up such a wonderful man. ((((hugs))))