sex and prolbems

my boyfriend and I used to have sex all the time every single day and it was freaky and amazing and now I can't Evan get him to touch me or I try to stroke him or give him head and he rejects it and when he showers he will watch porn and a lot of it like very spacific things right when I'm ready and able in the next room. like he's not just watching open I seen pics on his phone of other chicks butts he says he is not cheating but.....WHAT SHOULD I DOOO 😭😭😭😭😭 IM LOSEING MY MIND