once loved very hard to forget

its been almost 1 year already but i find tat its almost impossible for me to forget her..eventhough all my close friends told me tat she is not a gud girl and not suitable and using me only..i still dunno y i still like her..i did try to fall in luv wif other girls but they do not giv me the same feeling..most of my frens tinks tat i like her juz bcoz she is pretty..but its not the truth..i juz cant explain to them wat i like about her..for tis 1 whole year i keep on telling my friends tat i already forget about her but recently when i saw her with other guys i juz tink tat y she can b nice to other guys but cool towards me,..she was once very close to me during a year ago but tat time is bcoz she is using me only..after tat she seldom contact me..she only contact me when she nids my help with assingment or help her to do homework..i dunno y i still like her eventhough i noe tat she will juz hurt me.am i an idiot?