I think both me and my boyfriend have a problem. help?

Ok so we started dating 4 years ago. we moved in together just 3 weeks into the relationship. we are 5 years apart. I think he has a sex addiction... and i think i do to. We have sex on a good day 3-5 times within a 24hr period. On a busy, stressful day we have it once and maybe a bj. Thing is like sometimes even after 4-5xs he still watches porn and gets off. he used to work for a porn company too way back before i met him as camera man & had only been with 1 or 2 girls before me and only slept with each like twice and it probably lasted less than a minute. anyway... i have noticed he likes having sex really rough, hell say things and do things that make it seem like he is raping me. but he only does this when he is drunk. i like this type of sex better than any other type of sex. is this normal? is there something wrong with me for liking the feeling of being tossed around and talked to like im being raped... he like covers my mouth with his hand and doesnt make me talk. moan or anything... and he doesnt remember ANY of it the next day!!! is that weird? i also never orgasm unless we do it this way... i just like knowing im getting him off... is this normal?