This sounds similar to an ex of mine, so out of curiosity: 1) Do you find you engage in his hobbies and interests more than he is willing to show you for yours? 2) Does your sex life tend to center around his needs and desires? 3) Do you feel he is actively engaged and invested in your future especially with things beyond him (so something personal to you, nothing you mutually share)?

My ex had no interest in my friends and family. Eventually, I realized he was selfish in general- had no interest in my desires, in my dreams, or anything that didn’t concern him, even my pleasure during sex. They’re an ex for that precise reason. I legitimately have had hook-ups that showed more care and involvement for me than that ex of three years ever did. You are more than a supportive role for your boyfriend. You are the fucking main character in your life, and if he doesn’t respect and acknowledge that, if he has no interest in you besides what you do for him, then know his relationship to you is one of use. Make your choice.