I am so fckin pissed

I’m so pissed off like me and my boyfriend has been together for 2 years. At the Beginn we use to have sex allllllllll the time and the past 3 or 4 months I have to basically beg for sex. For example. I just asked to make love and I was rubbing on him and kissing his neck , he go say some tomorrow... tomorrow? Tf and it be days when I wanna have sex and he says no then wakes me up hours and hours later to do it. Now it’s like I gotta do it on yo time? Smh but I talked to him about it he says it’s not him he just don’t be feeling like doing it everyday. I even be so horny to the point where I’ll just masterbate in the bathroom while he sleeps smh. Idk what to do and he keep on telling me no ima b upset