Wat should i do about him ?

Okay well we only have 1 cl together n we tryed to sit next 2 eachother n he always tryed 2 touch me n ake me lauf n talk 2 me untill... last friday he was running n he ran behind me n grabbed y arm i said wat was that 4 his friend said cuz he wanted 2 touch me.. i replyed ewww that nasty n walked away ... i was such a JERK i noe but now he wont talk 2 me wat shud i do im really shy??