Not sure if you're trolling or if i'm wasting time explaining how women's mental ability works to someone who seems to be unexperienced. Here's a good advice for ya then, keep getting slapped around by your woman - Good luck sir.
Mental ability often refers to intelligence. This being the case, what are you implying about women's intelligence? Perhaps you meant emotional responses and not mental abilities.
Personally, I believe it takes a real man to have the patience to deal with women who are highly emotionally charged and sometimes physically violent without resorting to hitting them. My stepdad was such a man. He put up with physical abuse from my mom for 30+ years that they were together. I never got the impression from him that he either liked it or that he was afraid of her. He just preferred to walk away from an argument to engaging in it.
Fortunately, this is not something I have ever had to find out about myself. My wife has never been physically or mentally abusive to me nor have I been to her. Not that we have never had disagreements, but they have been mature and rational discussions and not really fights.
If a man feels he cannot manage a relationship with a woman without resorting to physical violence, he is the one lacking in mental ability and emotional maturity.