Omg!! wtf? my friend hit me?

Ok my friend (who will remain nameless) stayed over lastnight. i was making origami claws and she said not to poke her with them. i did anyway just to see what she'd do. she turned around and slapped me 4 times in the head really hard... WTF?! why in the hell did she do that? is she really my friend? she also eats all my food and will say im 'a meanie' if i dont give her any...