garlic sorry I haven't been posting here (very busy etc!) but have been reading this.
I really really think and especially after tonight you should try to make plans to live separately as this won't work long term yet alone short time.
You're asking questions of him that he clearly wants to avoid and asking other questions of him re his family which although reasonable I think will eventually blow up for you.
I think you will quite reasonably be sniping at him, wanting answers which he won't readily give and you know he's given up and for whatever reason (use man child as one perhaps?) he thinks you changed him, controlled him etc.
For what it's worth I personally feel he is using the "change" and "control" by you to justify his behaviour now... It's all too easy to accuse someone else of making you do something but it does take two to tango.
Anyway, i just feel, with what you know now, this will only prolong the agony for you now living together.
I am pleased you're back at work which sounds as if it proactively engages your life and is one of your reasons to get up in the morning eg to go to work!
I do ask this, apart from the dog what other stuff do you like doing? Was it all about you and your husband before?
Anyway you're doing great so far and really coping well even now, it's not the physical stuff etc though it's by being alone that you can scream, shout, invite your own mates over and berate your ex etc... It's all the emotional stuff and if you do wait until one of you moves out which could be ages, you'll just bottle it up or minimise it until then.