I feel insecure when my bf talks about celebrities.?

Is there something wrong with me?! My boyfriend talks about how he thinks so many celebrities are attractive and my confidence is already in tatters. I get upset and he says he is joking but the next day will be making ual jokes about some other fake blonde haired page 3 model or celebrity. It really upsets me and undermines my confidence. Am I wrong to get so upset over this? Thanks for your opinions.