The only person that can stop this cycle is you. I judge you not as I know the face of madness. I too have faced the man who smiled at the neighbors and they never knew the man behind that mask of civility was the demon sleeping in my bed that night. But there is a choice you have that no abuse excuses. Teach your children to be victims or teach them to be survivors who broke the cycle. I know it is hard but when I looked at my daughter and realized the legacy I was going to leave her I chose to risk death leaving rather than teaching her to be another victim.
Please beleive this is not meant to be cruel but a reminder that you are a Mother first and and punching bag last. Your husband lives what is his norm and so will your children. Teach them what will prevent an excuse to do the same.
If not for you for your children. That is where your strength is waiting for your grasp.