Pretty much that really. Separately 3 years, she's moved on but obviously still holds lots of resentment and jealousy. When she has a go at him, she clicks her fingers snd says she needs to speak to him so they argue at length. Going round in circles. Last night it was gone 10pm when she went over to his (we don't live together) to argue. He allows it. I don't know why? Causing me to doubt us. It's never ending. Always a drama every month at least. He thinks they're friends, she's vile to him.
Any words of wisdom how to deal with this?