I thinkt hat's a very good idea that your C came up with. If yuor W is that ill...yes, telling her what her family's "plans" are, it may very well prompt her into getting that physical.
I lived in PA most of my life, and at one point I had an uncle who was an alcoholic and as an intervention, I found out that it WAS possible to have him put in the hospital against his wishes...and did so in order for him to get the help he needed. You may want to check (in case it ever gets to that point) if that's still something that one can do in PA...I don't live there anymore, so I'm not sure what laws have changed.
