Hi, floyd.
So much to like here! Solid writing with the typical grace you bring to the lyrics. There's a nice interplay between short and long lines that propels the song ahead. I like the way the chorus starts out like a list, which allows repetition of the title as well as setting up an abab form only to have you unbalance things with a pair of cc lines, which allows the chorus to end with another repeat of the title. Slick and solid, but it comes across as natural.
The concept is clever as well, building sympathy for the singer without vilifying the ex and not making the singer sound whiney. She's not a bad person, it's just that
he can't let go. Nicely done.
Add to that some great singing, instrumentation and mix and you've got me sounding like a fanboy.
Your style is entirely different than mine, but I'm taking notes and stealing whatever ideas I can!

-- David