i am almost 17 and a junior and this gurl is almost 16 and a sophomore have known this gurl awhile and about a month ago we started "talking" u could say. a could 2 or 3 weeks later i asked her out. we were going out about a week and a half and last night i she was all excited abotu me coming over for new years. she has a brother whose my age and is one of those. dumb, stoner, "ill kick your ass" kids..shes hte opposite of him, shes a sweet gurl. her brother dislikes me for hte simple fact im dating his younger sister . i was at her house from about 6and supposed to leave at 1230 for new years. around 11 her brother calls and is on his way home and she doesnt want anything to happen cuz hes been drinking. so were going back to her house form her friends down the street and it was quiet cuz neither of us were happy that i had to go. well i was somehwat pissed off cuz her brother ruined our nite and yelled about him. she got mad that i yelled but wouldnt tell me she was mad at the time. well its time for me to go so we kiss eachother goodbye. and i leave. i get home and call her and i ask if shes mad and she says yes. tells me why. then goes off on we barely knew eachother and were better off as friends. this is not an hour after she told me how happy she was to be with me and how much she liked me. we broke up adn i dont really understand what im supposed to do as this isnt a long relationship so im not freaking out. but im curious as to why sum1 i can be so myself with and were so happy with. can completely change how she feels that fast.