Wat do u do wen the person u might love, loves someone else?

i relli lik this guy n we hav ben friends for lik 2 years now n lik last year i told him i likd him n he said he likd me 2....wel over the summer he found a girl on myspace n is datin her n is still datin her n he loves her n everything n he tlks to me bout it all the time....but wat he doesnt understand is that i lik him soo much i might evn love him....also wen i c him evry day he flirts wit me a lot n his best friend told me that he still liks me cuz he told his best friend....shuld i tell him how i feel? or not to save his relationship wit his gf?? any other suggestions plz post....i relli need help!!