Spaghetti episode confusion

Now this may be a dumb question, but why was it distasteful to eat the spaghetti after they showed the video of his life before he killed himself? From what I saw, he ultimately became rich/successful, broke a family up, and lived happily ever after with the girl he was in love with from high school, all before getting a disease that makes him constantly in pain? And everyone knew that spaghetti was made by suicide. I’m not sure why everyone threw up after seeing the playback of the man’s life. I’d like to think I’m a pretty empathetic person, but this scene/episode I just don’t get or resonate with. I am truly stumped, but maybe I’m overthinking it