it hurts me

My boyfriend watches it all the time and I have told him over and over how I feel and he doesnt get it. he just gets mad because I was "touching his phone" then tries to blame me for it. I have tried to get over it but I just can't. I always feel like I have to have sex with him every time he asks because if not I know he will go to the bathroom and watch porn. I can't stand it. it makes me feel like I'm not enough for him even though I will be laying in bed naked just waiting for him. I dont understand