sexually frustrated!!!

sex with my boyfriend is literally horrible. we’ve been dating for 3 1/2 months && we’re both 19. he cums so fast everytime we have sex. i’ve tried giving him head before we have sex to make him go before to see if it would help and it doesn’t. also, yesterday when things were getting hot i tried hinting i wanted him to go down on me and he wouldn’t. so i asked why he wouldn’t and he said because he never has before! & i told him i would help him you know and he told me no he doesn’t want to. moral of

the story it’s hardly ever satisfying for me and i don’t know what to do. :(