I am planning on exposing my ex on social med
So your goal is to publicly humiliate your ex?
Yea. I am going to say the he has syphilis on facebook so everyone knows.
Exposing others online is a form of harassment. People in your friends group will think they can trust you with their secrets after that.
Then they will see how messy and dis honest he is. You won't be able to do that to me.
It is not right to expose someone else's secrets without asking them. This is something you should allow them to tell everyone, and by exposing it you are taking that right from them.