You have to decide if this deal about the bed is something that you want to fight about. Is it just a battle that you will try to "win"? Or is the sleeping arrangements something you may be able to compromise on?
I don't know your sitch well enough to give concrete advice but in the totality of this mess you find yourself maybe this is something that can be revisited at some point down the road in your journey.
Unless I am misunderstanding,
You said, she said she was upset and didn't want to talk about it.
Are you sure she is upset about the bed deal? Maybe it is something else that is bothering her and you are bringing the sleeping sitch up which, if it is not this that she is upset about, will create another conflict that wont help anything.
If she wants to talk about what is upsetting her she will. She knows where to find you.
All I am trying to say is think before you act.
Sorry if this post comes across as confusing(it is to me a bit)
Me 47/W 34 T 16 M 13 No kids BD 6/2013 W asked that I move out 6/2013 I moved back and W is upset with this 12/2013 separate beds not much talking Served D Complaint 5/2014 W moved out 9/27/2014
