My dad is married to a controlling, conniving, emotionally abusive woman (my stepmother). He does so much for her and has to do whatever she says, otherwise she will become upset with him. She’s disrespectful to him and his family, always saying horrible things about them. Even her own child wants nothing to do with her because she’s been so emotionally abusive to them. He’s such a nice man and she just totally manipulates, controls and uses him. My dad is resilient but I don’t want him to spend the rest of his life in an unhappy marriage. He’s in his late sixties and she her late fifties. She doesn’t deserve him. He has to tread on eggshells around her and watch everything he says lest she criticise, ridicule, or use the silent treatment on him. If he tries to push back she will shout and scream at him. He said to me he doesn’t love her and wants to leave, but is afraid of her reaction. He’s tried before and she cried and emotionally blackmailed him into staying. They’ve been together 10 years and married for 5 or 6. They both live in the house she owns and with the money she’d get from my dad from the divorce she’d be fine financially. What steps should he take to leave?