RANT ABOUT SO SMH IDK WHAT 2 DO NEED ADVICE

We have been together for 3years,to make it a long story short I came in from work last night he was sleep so I looked at his phone to see did he receive my messages b4 I got here so when I unlocked his phone I saw a porn video he had saved to his gallery he was watching it so I asked him why was he watching that he said cause he can so I said u can watch porn but not fuck me he would rather be on Instagram/playing the game/or watching TV so I don't even ask him to fuck cause as him being a man that should be on his mind anyway so we ain't been having sex lately & dat hurts me also,sometimes I think I deserve better & I always talk to him about why he don't fuck me & how I feel about that I just don't know what to do Any Advice??