My aunt is soooooooooooooooo irritating...?

I never liked her to begin with, and she never liked me to begin with. I worked hard decorating our house, spending so much money on little things to make it look great. She only has been here for 1 day and she arranged everything in my house and it looks horrible! She is beyond rude. She took all the pictures off the fireplace mantel, rearranged our furniture to what "she finds good" and is taking pictures off the wall! She even stored all the stuff I bought (100s of dollars) away! She is so loudmouthed and she makes fits and scenes with my mother in public. My dad is irritated but he tells me not to be rude, and my mother doesn't do anything. Is there anything I can do?