I am so sorry for what has happened--for how he has treated you! You definitely do not deserve it. I wish I could tell you that someday he will realize what he has done and feel remorse for it, but that day may never come. I am also sorry to say.
My stepson has threatened to kill 3 members of his own family in the past...no apologies, nothing. So, that is something we have to deal with and we have to protect ourselves from him when he is at his worst. Is it fair? Oh heck no! But it is reality.
Just like an addict has to be the one to decide to do whatever it takes to get well, we have to be the ones to protect ourselves and not be fooled by our emotions.
I hope the days get better as time goes on!