yeah, find out exactly what is the crux of the matter. In my experience, we women never say exactly what we think. Apparently you men have to intuitively ‘know’ what’s wrong.
I’d keep asking her questions to get to the heart of the matter.
There is something very telling in your line, “she seems to resent that I did something right and have a new, and better, attitude on life.” Are you saying because you sold the house, and were sucessful, she now resents you?
Are you absolutely sure of this, or are you just guessing?