Nt able to frgt abut my past?

i am 18...i was in a relation..but my boyfrnd cheated me....its almost a year....i thought i frgot him bt i cld not....i am not able to frget him....evrytym i keeep on thinking abut him....i evn tried to b bzy bt it didn't worked.....evrytym i feel lyk i shld go back to him...but i cant...i need to move ahead in lyf....i want to say abut my past to my parents...as my parents are a bit narrow minded i am afraid to say....wht shld i do ????????????????????