Your roommate has been weird for a while now. She became quiet and didn't talk to you anymore.

You're in room and you hear scream and you run in to her room and you're say, "What happened?!" , you noticed a big whirlpool in the middle of her room, you watch her body tearing apart and flowing into whirlpool, I stepped out of it and the whirlpool stopped. You started saying "Where is she? A-are you a d-demon?" , I interrupted you, "She sacrificed her body for the portal for me, against her will."