I'm talking about sharing the house AND maybe another small studio apartment ...

How about privacy? I mean where do you put your personal stuff, your legal files, etc. And the thought of an OP using the same bed, Ugh!

And once the spouse files for D or is confirmed to have an OP or even if they sleep in the other room ... living in the same house (so called live-in WAW) its like living with the enemy. Believe me I've been thru' it. Yikes!