Is it normal to feel this bothered?

My niece and a person I knew from High School got married today. I really don’t F with the guy and I think he’s a scumbag along with some others from my family. I just feeling so much hate towards him and his family is going to be apart of my family. I didn’t attend the wedding or ceremony today, i just feel so disgusted everyone can go to that shitshow after everything he’s done. (I would explain more, but its too much)