To any other women with an artist ex-boyfriend like Nick:
I’d argue that the tortured, perpetually-victimized, self-focused artist in his late 30s/early 40s with an addiction to substances and an obsession for capturing muses several years too young for him is a whole fucking archetype. If you were triggered too: I see you.
To men like Nick: you aren’t actually the main character. Get therapy (and maybe a job that doesn’t seem to require the emotional pain of yourself and others).
Edited to highlight: women are not rehabilitation centers for unstable or insecure men.