Why is my sex life so...dull?

Alice
My fiancé and I used to have sex...a lot. We still do it once a day or every other day and even incorporate toys. Don't get me wrong I love him to death but it just doesn't feel good anymore. I haven't had an orgasm induced by him in probably three months. I can masturbate fine, but when it comes to intercourse it's just him pleasing himself I guess. 
Any suggestions?