Best Friend Boyfriend kissed me after school! what 2 do?!?! 10 points!?

now....my name is jasmine...im 12 and my bestie kanesha and her boyfriend and i are friends....in school we act all mad at each other. now today after school....her bf was walkin with me.....he put his arm around my shoulder...i put mine over his..then he started to move his hand to my waist and hold me tight. he hugged me like 6 times rlly hard then when we got alittle to his house her turned me around and kissed me on the cheek....i kissed his...then he said kiss me but he just like kissed me on the lips....so he said dont tell and i said ok w.e....on the way home i was thinkin bout it....should i tell her? was it a real really real 1st kiss? why do i feel kinda bad but alittle happy? im so confused and remember we are in 7th grade and he is 13....wat the hell to do?!?!?!