<human>: Alright, well, my boyfriend got kicked out of his room (he had a room, one floor up, in his grandmother's apartment) yesterday due to his aunt telling his grandmother every single bad choice and action that he did.

On Friday, when his grandmother told him she no longer wished for him to go to his room while she was away on vacation (came back yesterday), I left my Xanax in his room.
I have high anxiety and have been known to have panic attacks randomly. He took my bottle, yes I have a prescription and it is legal for me to have it, and put it in his safe.
Today, after he moved out of the room, he opened the safe to find that his aunt took some of his belongings out of and my prescribed Xanax.

I am freaking out because she's mentally ill, proven by doctors, and she's so angry at my boyfriend and his father for defending him that she will not talk to him or his immediate family. 

I am thinking of contacting his grandmother and telling her the situation and asking her to talk to his aunt and figure things, but I am unsure if that is the right path to chose. 

His aunt also used to be a heavy drug addict.

Condense the text into a few key points
<bot>: BF's aunt stole my prescription Xanax and I don't know if I should call his grandmother for help or not?