a girl..

i hv always try 2 treat her good, i will do anything that she like for her, find out the thing that she cant find for her, but don know y, i always make her angry 2 me, it's due of my behavior, or it's other reason? i know we r impossible 2 start our love relationship, so i jz wan 2 be her best frend, this is my only wishes b4 i graduated from NEC, is it very greedy?