Why no orgasms?!!!!!!

Rachel
So I've been dating my boyfriend for a year now..
The first and only time he has gotten me to orgasm was when he was eating my pussy which was the first time we'd done anything sexual.
Since hen we've had sex and he's rubbed my Clit and eaten me out but no orgasms yet?! I don't understand.
I have been masturbating my clit and always seem to orgasm after..has my clit become de senstitized? Are orgasms an emotional thing? Is it because of porn? I'm so annoyed!