Culturally speaking what should i do about this white girl i'm dating?

anyways, i WAS TALKING to this white girl named elizabeth and we kicked it off and whatever. anyways she planned to come over to my house for dinner.as usual i agreed. so i begin to make the dinner and set the plates up on the table..but something about this night was different from all the others.her voice was deepened and her tone was very audible. normally she usually speaks in mutters where you could barely hear her but now she spoke outloud. anyways...i set the table and she came over for dinner. we sat and begin to eat dinner. i cooked steak and mashed potatoes and gravy and also baked some bread along with a side plate of veggies. so as we started to eat she was very talkative and very polite as usual. so she asked me do i have any mayonnaise for her mashed potatoes? i replied wtf do you need to put mayonnaise on potatoes for? she responded back saying '' oh. but i so love mayonnaise and i'll eat it on anything.'' sounds very gross to me but i told her no we dont have any mayonnaise. suddenly her facial expression became very demented and she begin to leer at me. she replied in a angry,very loud tone ''YOU DONT HAVE NO MAYONNAISE!?'' it scared me so because behind her voice i can hear the voice of something else far more diabolical. I was so scared. her eyes turned red and i quickly got up and try to run out of the door.She shouted ''YOU WILL DIE HERE, JAMAL!'' she started breathing fire from her breath as wings spread from her back and she begin chasing me down the hall. I somehow managed to cut a view corners and hide in a nearby abandon janitor room.i heard her flying down the hall shouting in a demonic tone ''AH JAMAL! ALL I WANTED IS MAYONNAISE! GIVE ME THE MAYONNAISE AND ILL LET YOU LIVE!'' i am scared and i dunno what to do. What should i do? she is down the hall and i am hiding in this dark room all by myself. i am online on my blackberry and i barely have life left for my phone.HELP ME! please!