Am I over reacting?

I've been with my man off and on for maybe three years now and he's NEVER posted pictures of us on social media which sounds really petty but it hurts my feeling like when we break up he has no problem posting photos of him and his female friends. Isn't that annoying or am I just over reacting? I've brought it up multiple times that it hurts my feelings and he says "I just don't even think about doing it" but with his ex he had millions of photos with her everywhere. Opinions?