My partner has been divorced twelve years and shares two mid teens with his ex wife.
She has had partners since their divorce, but remains 'angry' that my partner left her (no affair, he wanted to end the marriage, she didn't). From what I can tell, he's always gone above and beyond in terms of support since their relationship ended. He pays almost all of her rent, has the kids 50:50 etc
She remains very difficult towards him, shouting and swearing and phoning constantly if she doesn't get her way on something. I have always been polite and amicable towards her - none of this is my drama. However, I had to change phone number due to her rants at me every few weeks. She hates me as she also hates her ex husband, she calls me names and swears at me. She thinks he should be single and in eternal purgatory, for divorcing her.
I don't really know what to do - dp hasn't solved this after all these years (we've been together 4 years) and I'm worried when my phone rings it'll be her, having found my new number somehow.