I'd be VERY careful about the adoption thing...taking in a child to "fill a void" is about the worst motivation for parenting I can think of.
Now I'm NOT a parent, so perhaps some of the others will have a different view.
It still seems to be a search "out there" for the wholeness your W needs to find within herself. But for the time being it can be a fun "possibility" to explore.
I know I wasn't there to hear the tones and all, but her comment of "either I need to adopt, get my degree or leave you" struck me as really insensitive!
Again, it's looking for something outside to "fix" her. Perhaps as she explores her own psyche, or gets to counselling etc, this issue will be delved into. I think it's essential.
But you're right about one thing...It's not so much the OG per se...it's this sense of "lacking" in your W that is the issue.
Take care, Bri
Shiny
P.S. Yes both reactive and more chronic depressions are treated the same way.