I believe it's about how difficult it can be going on living without someone who used to be important to you, but who has passed away.
"Don't want to understand why you never get older" is the most powerful line for me, since it captures that strange feeling you experience when you realise that you are getting older, going on with your life, and making plans, while this person you've lost will forever stay the way the were when they passed, and never grow older with you.
I believe it's about how difficult it can be going on living without someone who used to be important to you, but who has passed away. "Don't want to understand why you never get older" is the most powerful line for me, since it captures that strange feeling you experience when you realise that you are getting older, going on with your life, and making plans, while this person you've lost will forever stay the way the were when they passed, and never grow older with you.