why!?

why is it when I want sex an he says no im OK with it.. how cone i can please him with nothing in return an be ok with it.. oooo but nooo if i say no to sex( 34 weeks pregnant) i dont want him any more im not attracted to him anymore i dont love him anymore!? when i want him to touch me an i dont wana return the favor IM being selfish!!!! ugh!!!!😡😡😡😡😡 this is pissing me off!! its not fucken fair!!! 😡😡😤😤