There is a friend I know who has been really unstable he was my partner… Then he became really self sabotaging hurting people and pushing them away, lashing out at them. He’s become really unstable and it’s not fair to other people.
Work on his heart chakra. You could heal him from a distance if he is emotionally hurt in any kind of way.
If this is a more of a psychological thing, then seek a professional.
You could also do a simple Harm None Binding.
But yes professional help sounds like it should be applied as well.
I second this.