My boyfriend doesn’t like my pictures

On Instagram he likes all the other girls posts. It’s all selfies and pictures of them. But when I post a picture of me, he doesn’t like it... idk what to think. Idk if I should say something. I don’t want to tell him to like my pictures, it’s not that. It’s the fact that he likes pictures of other girls and not mine. I looked at some of the girls he follow and he likes every single post if theirs