Did I Do Wrong for Quietly Sharing That Chat?

As-salamu alaykum, I'm a revert and I started wearing hijab in 2020, dressing modestly and not wearing makeup. A throwback video popped up in a family/group chat showing a baby, and I politely asked for it to be removed without making a scene. This person has been a covert abuser, constantly taking jabs at my deen. Their behaviour has caused me real psychological harm, and after having COVID I became neurologically ill and was immobile for 14 months. Today I quietly shared that chat on a short video platform with the names covered because I felt they'd gone too far. They would insult me and then delete messages in the chat to try to make me look like the unreasonable one. I wear hijab solely because Allah commanded it, not because I think anyone will desire me. I didn’t warn them before I posted the censored clip. They are friendly to other Muslims in person but abusive toward me when I'm not there. I wanted people to comment so I could show them how crude those remarks were toward someone who wasn’t causing any trouble and who deserves to be treated with respect. Here’s a summary of the exchange: Me: Please remove this video from the group chat. I'm in hijab. Thanks. Person A: No one will see it, habibty - only us. Abuser: On this chat… but on the bigger group people are on there and they wouldn’t remember, this might make them react… even though the head is off-screen, the idea is there. Me: I have tight leggings on. This is just inappropriate. Did I sin by exposing the chat? Does this action serve Allah in any way? JazakAllahu khayran for reading.