I have a half brother who is 15 years older than me who has lived a very troubled life, he almost definitely has some sort of personality disorder and has been in prison numerous times for knife/gun crimes.
My mum punished herself for the way he's turned out, but tries to keep the peace with him and the rest of the family. He can be so loving, happy and calm and then can switch and be aggressive, nasty and a controlling bully if you don't agree with something he says. He's had numerous failed relationships because women flee from him, his current girlfriend has been cheated on, hit, controlled and much more. It's awful and I've considered ringing social services myself for my beautiful niece and nephew.
He genuinely sees the world through different eyes and the way he thinks is bizarre, he's always paranoid as well but you get the jist.
He says degrading things to me when I see him every time but then passes it off as "he's only looking out for me" and it's got to the point where I no longer want to see him. I was planning on having dinner at my mums, just us but now he's asked to come round too and I've said I will visit later on. Now my mums in tears and saying I'm unreasonable? 