No orgasms here

So, my SO and I have sex constantly and I have not cum once. He has cum everytime. I had kindof just accepted it and just starting masterbating with him in the shower and the hottub. Tonight I was masterbating and wanted him to stay with me and watch but he was just bored and didn't see why he needed to be there. I am fed up and don't think our sex life is fair. Is that a reasonable conclusion?  Help me please