Well sure but he’s 16!
i don’t understand why this simple question of parenting strategies is turned here into a massive game of “who has to be ashamed.” Its not useful. Its not relevant. No one is blaming OP. Its not useful to assign blame or shame.
However we have an unspooling set of incidents: OP is the one who chose the order of the action. Her comment “do you want to die” was the start of the unravelling of behavior. And she is asking the question here “what can I do.” So she gets the chance, here, to examine her behavior and mske a different choice. As they say “if you keep doing what you do, you will get what you got.” She can change. She can’t make him change. She can’t angrily punish him to change. She can only figure out how she wants to live, build that world, and invite him back.
it’s entirely up to her. Its easy for mumsnet to treat this 16 year old as a throwaway—just a hulking abuser, an (ugh) man like his father. Lots of posters have advocated criminalizing him, treating him like an adult, beating him, slapping him, exiling him, throwing his things out, telling him never to come home, etc..etc..etc…Is that what OP wants? She sounds devastated. To her he is her child—she loves him and has tried to live with him and raise him despite her husband’s violence and cruelty. She wanrs him back. She wants to heal the relationship. The advice of posters telling her to beat or insult him into submission is not relevant. They want the same authoritarian peace her ex does: they made a desert snd they called it peace. The adult must win or we all lose.
In reality just the opposite is the case. OP needs to find a way to demonstrate and live non violence with her son. They are two traumatized people living under one roof. She is the elder, she is his parent, she has a capacity that he doesn’t to recognize the course of events and deescalate.
As soon as her “joke” elicited such a strong reaction she should have backed up and given him space. As everyone has pointed out an aggressive posture and chest puffing is a fight/flight response. It does not mean he was a danger to her. Both animals and humans will posture to puff themselves up snd scare away an attacker. Most if the time this works and no fight ensues. He needed not to be cornered. He needed a way to retreat.
As for the OP as a trauma victim herself the same advice applies . She obviously became overwhelmed with memories of DV snd was hijacked by her amygdala. The advice I give clients is “step back” move away from what is frightening you until distance lets you feel safe enough that your prefrontal cortex cones online. From that vantage point you can make better decisions.
Both she and her son could benefit from non violence training (books, videos).Try more trauma therapy. Think about this incident as a chance to model intelligent, compassionate, problem solving skills to your son.
As others have said start by reconnecting to him. Ask him what each of you could have done differently. Ask him, with curiosity, what each of you could fo differently next time. Don’t offer perfection—and don’t demand it. Just offer, and receive (hopefully) forgiveness and reattachment as mother and child.