thank you for the replies PDT. i'll try to be a bit less vague. W and I talk once a day on the phone, regarding picking up our son. the only conversations we have had regarding other things are the one I mentioned last night.
W : went with (couple) house hunting tonight. found a really nice place last night with a bunch of bedrooms
Me: why do they need so many bedrooms ?
W: Son and I would move in too. I CAN'T stay alone in our house. plus it would be so much cheaper than $X i'm paying now.
I would have ended it there, and said "Oh."
Your next sentence tries to problem-solve for her. I'd suggest not doing that.