Yay or nay?

I (29F) recently found out that someone (28F) I hate likes to receive golden showers. This person has been part of my life for the last 5 years of my life and is always combative, argumentative, etc. In those 5 years, I’ve chosen to take the high road. But knowing this information about this person seems to be a perfect opportunity for me to get my pay back I’ve wanted. This pay back includes sharing the information on social media and befriending this person’s family and friends. My husband says I’m taking it to far but tbh I really want to do this.