I haven't caught up on your sitch but based upon your last post I can relate to the things you mentioned.
Just like your sitch, W and I are also living as room mates and just like you I don't like this arrangement but I think it is important because it gives them some space. I don't see this as being forever and I'm sure my W wouldn't want to be in a R like that. But give it some time I know easier said than done but be patient.
I agree with Tumbling reclaim the MBR or atleast take turns. In my current sitch, W and I take turns.
My W said the same things, don't want to be married, don't want to commit etc. the only thing that keeps me going is the saying here for the WAS "believe none of what they say".
I hope this helps, Newman
me40; W43 M18; T~20 D18; S13 & S3 bomb 5/9/11 EA busted 4/30/12; 9/4/12; 4/29/13; 6/10/13 same OM
Separated 4/1/14
"Even a flicker of light will shine through darkness-12/25/2012"....better days ahead.