@woozle "and how Jenny reportedly acted on her last day (apparently lively and engaged for most of it)... "
So, this here reminds me of this comic, which is trying to state that if someone who usually depressed has a sudden upswing of emotion it could be a sign that they've made a very regrettable decision, assuming I am reading lively and engaged correctly: https://www.depressioncomix.com/posts/134/
If so, it might be useful knowledge for saving someone in the future but I felt hesitant to post this even with the CW ._.