She likes to start arguments.
she's easily pissed. 
she's short tempered.
she's jealous when you look at someone else or talk to any girl.
she also love you but hides it
she avoids smiling and had cute sides she's hiding. 
she also likes to say something. hurtful towards you but she doesn't really mean it.
she's always mad.
She's your girlfriend
She's cocky
She feels superior to everyone
She's smart
She have a hobbit of saying stuffs like idiot, dummy, and baka.
She pouts when her heart is fast.