@Itisallgoingtobeok still very up and down but that's the final nail in the coffin of 7 weeks of absolute torture. I told him I didn't want to hear his reasons (every paragraph started with "I") and he still went ahead and sent that letter. Quite disrespectful I thought.
I'll be in our home for the foreseeable until it sells, so I bought myself new bedding and pillows and filled it with pictures of friends and family. Threw away all out pictures and my wedding box.
I'm seriously grieving the man I married, but not this stranger.