What is my daughter learning about how a man should treat her?
or
What is my son learning about how to treat the woman he one day loves?
And then you act accordingly to teach your children what is right.
No woman should not stay in a situation in which she is abused mentally or physically. This is not something to be DB'd.
If that is what is happening to you, it becomes more important that you teach your children that it takes a strong woman to say "no more" and hold her head up and walk out with them in tow.
I don't know your exact sitch but I wish you well.