Naked pics of women

So I was having dinner with my husband and his buddy text him and we were sitting right next and I noticed it was a pic of a semi naked woman. I asked him why did he send him that and he was like he always does and I asked him if he did too and he hesitated to say yes just stupid stuff. Then I was curious and asked him to show me to see if he would and turns out he sends plenty of pics of sexy women naked or wearing sexy outfits. I never go through his phone and he never goes through mine either this was a first for me. I didn’t take his phone away or anything. I wasn’t too mad at the the pics but more mad at him trying to hide it from me. Also those girls look nothing like me so obviously it makes me a little self conscious. I haven’t said much I’m just quiet around him. Do i have the right to be upset?