In Serious need of Advice please help..

So my BF only in house not in public, Don't act the same i know people change over time because i have also. My issue is When your looking at porn and on social media and on dating sites and i ask why i get told i don't know i just do i have always been if you want to try something or anything that has to do with sex im open just talk to me. I got irritated because you cant have sex and get it up with me except maybe 2 times a month if im lucky but you can get it up and jack off and do all this other stuff.. After the talk it changed now since he has started a new job we dont see one another hardly even speak, affection is barely there and we sleep in different rooms which never bothered me because we have always done that but now it seems to be more and more. So Last night i found my self Horny like no other and for the first time i finally masturbated i can say it wasn't the same I'm use to having sex almost everyday and some days more than once. I am not sure how to deal with this amymore i do love him maybe that's it i Love him but he dont love me, i am starting to doubt myself, maybe im not pretty enough, im too fat, and all other. Sorts of negative thoughts which have never been me. ( What to do )?..