major annoyance;

my sister gives me major attitude. she's only 12 and she acts more of a teenager than i do. i say one little thing to her & she goes of in defense mode or something. its totally not fair to me because my mom will gett mad at me for getting irritated at Lorena's stupid little attitude. its bogus i tell you! i try to be the bigger person & just walk away but its so hard when she does it ALL THE TIME -____-