I'm thinking of body-shaming my ex-boyfriend because he broke up with me.
Why wouldn't you help your ex-boyfriend instead of body-shaming him?
I'm not against body-shaming, I'm against internalized misogyny
Breakups are hard, but they don't have to be hurtful or excessively messy. Body-shaming someone you once cared for is not good behavior, regardless if you're with him now or not. Maybe try being a supportive friend to him instead.
He hurt me so I want to hurt him.
I don't think it's worth it to try make your ex-boyfriend feel bad. It would be better if you moved on with your life, and didn't body-shame him. Doing so will only make things worse for both of you.