Asking for my brother, who has ASD and is therefore quite vulnerable to manipulation and so on.
He has left a toxic LTR with a woman who is very emotionally abusive (intimidation, threats, blackmail, gaslighting, manipulation, blame-shifting, playing the victim, coercion, minimising, denial, tried to isolate him) and he does see the relationship was toxic (finally) and has thankfully left it.
However, the woman is persistently "hoovering" him - generally by playing the damsel in distress and phoning him with tears, apologies, asking for yet more closure and even threats to harm herself and so on, then after she has his attention, engaging in very abusive behavior which she then persuades him is completely his fault.
I've talked to him lots and tried to help, sending him lots of links online, and he is making progress in realising what is going on, but once he is hoovered and spends 5 minutes talking to her, he is back at square one believing he is the guilty one and she the victim and somehow she makes her reality his reality.
I really want to help him out of this cycle. Does anyone have advice, tips or resources I can point him to so he can get control of the situation and have better boundaries so she can't hoover him in? I know "no contact" is best, but that's difficult in the circumstances.