Was my privacy disrespected?

To preface this, I am a woman, and my best friend is a man of a similar age living in an entirely different state from me. My boyfriend does not like my friend as he is convinced people of the opposite sex can't be friends without the guy wanting more. Yesterday he came to me on the verge of tears and asked if there was anything I wanted to come clean about or if I had done anything sketchy with someone else. I haven't and I knew there was nothing. Apparently he had used his power as our phon plan carrier to look at how many messages and pictures had been sent and received from this friend. There were some memes we sent back and forth and I guess my bf assumed any pictures we sent were nudes or something. I feel like he entirely disregarded my privacy by looking at something like that and assuming the worst. Am I overreacting?