I'm still unclear just what LB meant when he described Christine as "fragile"...
Stuff with her hands and the erosion of her voice make the idea that he means
physically fragile seem like a real possiblility... Also Stevie telling her she needs to get a trainer and all that if she really wanted to come back is a bit more interesting in light of the word "fragile"... but stamina-wise it would seem Chris has been holding up, I mean she did a whole tour with LB and now again with FM.... which brings it back to being reference to her voice and ability to play onstage (which is different to playing in a studio)...
If he means something else, like emotionally fragile.... I haven't seen any real signs of that in interviews and things... and she wrote a bunch of songs and seems relatively productive which again doesn't seem to indicate mental decline....