Abusers are mentally crippled...They had bad experiences in the past now they do the same in their present and they continue it all along.... they punish themselves by their own actions..
Someday when you least expect it you will be forced to face the demons you create in one way or another.
Not many people understand that we are all connected and what one person endures affect that person as well as others around that person. Even if that person chooses to say nothing about the abuse their actions/attitude/characteristics change thus changing everything (and everyone) connected to them. It will come back to the abuser someday somehow.
when you abuse someone, you are prohibited from any further contact with them.