Boyfriend watching porn

Normally I dont care if he watches porn but last night he was watching girls with big boobs specifically and it kinda hurt. I have "c" cups but they arent very big and even though he says he loves my body and my boobs his reaction when I wesr push up bras and stuff makes me feel otherwise. He also use to have iddues talking to other girls and sexting them and hed always compliment their boobs. All his exs had big boobs and I'm starting to feel hatred towards my own body because of how much I wish I had bigger boobs. Am I being crazy? Is this just my own insecurites coming out or should I feel this way? I just feel embarrassed and like my lack of boobs make me less of a woman.