Boyfriend saved a naked picture of me without my permission. How should I react?

Today me and my boyfriend were on facetime and I propped him up (from the back) to watch me as I shower as I do from time to time. While I was showering I turned around and noticed a message from facetime saying he took a picture.

Me and him have sent teasing pictures on Snapchat from time to time but I always indicated that I did not want him to save the pictures and at least once I told him it was because I had a bad experience with letting people save those kinds of pictures on their phone. I’ve also been very successful career wise and have a serious title to keep.

How should I react? I’m very upset with him and I feel like he broke my trust. He said he thought I was comfortable with it (cause we had been taking pictures of each other earlier that day).
Updates
+1 y
For those of you saying make him come over and see instead, it’s hard because we’re long distance for the next 2-3 months and even when I finally do get back home we both live with our family.
Boyfriend saved a naked picture of me without my permission. How should I react?
Post Opinion