Insecure

Me and my boyfriend have been together for 3 years. I’ve caught him watching porn multiple times and every time i tell him how it makes me feel. He knows i don’t like it. He knows it makes me feel like my body isn’t good enough for him or like I’m not good enough in bed. He continues to do it, though. How do i make myself feel better about this? How do i become okay and still feel good about my own body?