I recently started hating a guy.
What did he do to make you hate him?
I hate him because he abused his wife.
I can understand why you hate a guy who abused his wife. Being abusive is terrible. I think you should try to avoid this guy and help his wife if you can.
I don't feel like going out of my way.
Yeah, you shouldn't have to change your life because of something another person did. Have you reached out to the wife to ask if she is ok? She may need help to get out of her relationship or someone to talk to.