Sorry, I burst of laughing when I saw that. I get your point but I couldn't take that thing that I couldn't take it seriously at all when I saw the ending, because its such an edgy teenager thing to use
that to frame the story with symbolism. She remembers Joel plenty without the guitar, I think she would be fine nor would it stop the depression the moment she stops playing,
I do get your point though, suicidal thoughts could be a very real thing, but I doubt it. Too long spent surviving, so her at least mustering the energy to go to Jackson as
Halo is Back
said is a very real possibility.