Reving engines

i understand that watching porn is normal, but is it normal for him to always make sure his needs are takin care of, and im left waiting? if he doesnt watch it everyday its every other day, but multiple times a day. i have written emails, sent texts, written letters telling him that i want him to touch, kiss, suck, rub me, even sent sexual fantisies that i want us to try and i get no response. ive asked to watch it together, he says no, ive asked to go to the porn shop and pick some things out he says no. he tells me as im giving him a fantastic blow job, of the things hes gonna do to me, when he explodes in my mouth he rolls over with his back to me and falls asleep, leaving me hanging. i dont think he is into me anymore, i think his porn addiction has gotten the best of our relationship. i yurn for him to touch me, but he doesnt. what is wrong???? i love him deeply, he is a really good man and a wonderful stepdad to my kids, but im sexually frustrated and i need to be touched rubbed kissed sucked and caressed like everyother woman?? what am i doing wrong