My dad is in an emotionally abusive relationship - he had told me this himself. He is a kind, generous and loving father and grandfather.
His GF is toxic, critical and jealous, and regularly sabotages the rare time DF gets with family (he lives in a different country). They don't live together, but she plans to move to his country soon.
I know that only he can decide to change things. He had a difficult childhood and some traumatic experiences in early adulthood.
I'd like to recommend him some books or websites to read - to help him to recognise that the emotional abuse he experiences is not his fault, and to support him to put boundaries in place which might help protect his mental health.
I'd love him to leave but I think that's unlikely, sadly. The behaviour is very subtle and often enabled by others around her trying not to rock the boat. It's the cumulative effect and damage to his self esteem that worries me so much.
I have often seen Lundy Bancroft mentioned, but these seem to be books aimed at women rather than men /partners?
Any advice gratefully received!