A small theory about why Pink left Spinel (related to her character)

many of her lines mentions about how much she hated her past-herself-

(about how she talks to Pearl that she wants to forget all of her life before Rose, or telling Greg that it’s good to not know much of her, etc..)

and Spinel has a lot in common with her…. maybe Pink saw herself through Spinel, a part of herself she always wanted to forget and destroy….