This can be a very dangerous situation for you and your son. I am worried about you and for your son.
Abusers will not change, if they don't get help and even with therapy they need time to accept responsibility for their actions and a willingness to change and work hard on themselves.
Choking is a very serious sign that it can lead to very serious injury and it is one of the warning sign of domestic violence that increases the chances of death. Abusers who choke or suffocate their partner 75 percent more likely to eventually kill them.
Your priority should be to make sure you have an escape plan to keep your child and yourself safe.
I understand it is very difficult to leave, I have been where you are.
You are not alone, and we are always here to support you.
Please also call the domestic assault hotline in your area and talk to a counsellor.