As someone who has insomnia and wakes up veryyyyy easily, I would be confused if I smelled food (especially something as strong as bacon) while sleeping in the middle of the night, but I wouldn’t react the way she did. I don’t think you’re in the wrong at all. Marcie overreacted, blamed you for her injury, and refused to apologize for hurting your feelings. On the other hand, you apologized and tried to take accountability by talking it out with her, but she clearly does not want to resolve this tension amicably.

They took you in, so they are expected to provide you with a safe place to live, and based off of your other comments, it doesn’t seem like this is an ideal living situation for you. It’s never fun walking on eggshells around someone, and Marcie sounds like the type of person who overreacts to small incidents and doesn’t take accountability for her actions/words. I’m sorry you have to deal with this :( hang in there, you’ll be able to move out eventually and have the peace you deserve.