Should i let him do what he wants?(really need help)?

my bf n me were best friends for a year b4 we started dating 3 months ago n he was really shy at that tym n use to tell me he hates sex but now its a differnt story wen i talk he starts to kiss me n knead my body n doesnt stop until i shout......the last time i met he pushed me onto his bed n started kising n opening his shirt n touching me then i slapped him n ran away crying i mean he is 19 bt m 14 hw can i like sex,,,i really love him bt now m scared to see him as if he will rape me...........he has said sorry 1000times aftr dat n sent a teddy n dress....wt shld i do? he loves me or lusts me? shld i just let him touch me coz i really love him n missing him too//