Why was this such a secret?

i like this kid a lot and he knows it.. we hungout and before he said he would hu with me if nobody found out.. we hooked up all night and did some other stuff.... i feel used but i told him i dont wanna be used and i dont like one time things. he said it doesnt have to be a one time thing and he was planning on talking to me again.. but its been a week and he hasnt texted me when he said he would.... why is it such a secret that we hooked up? he said he didnt want people spreading **** but i dont know