What’s your opinion on this?

Recently I joined a diet group with a group chat of all females and a friend of mines cousin runs the group chat (female too). I needed to send in photos of me as progress pictures so we all show proof we’re making progress. In these photos I need to be in a sports bra and underwear or bathing suit.

My boyfriend threw a huge fit saying I’m basically sending strangers my nudes? And that I’d be exploited and things like that.

He then said something that outraged me. He said “I swear sometimes you girls do this to yourselves.”

He claimed he was joking and clearly didn’t mean it but I just feel that was so wrong to say. Am I overreacting or should I be upset?