You know, in reading your posting i got very, very strong intuitive feedback that this person is afflicted with narcissistic personality disorder. Hopefully i'm wrong, but my spirits virtually shouted it in my ear! Give it a Google.
As a person who works in the mental health and therapy arena, there's nothing you can do about this disorder unless the person themself is willing to make a complete turnaround, with professional help. Mainly it's because they will never see their own culpability - they are always perfect and in the right and the problem always lies with the other person.
I don't know of a specific spell per se. You could appeal to the person's higher spirit, their inner divine wisdom.
Or you could appeal to your own inner divine wisdom to go deep into who and what is in your best interest and who and what has your nest interest at heart.
Hopefully you aren't trying to co-parent children with this person.
Check out this working from my blog. You can make substitutions as your situation dictates: