My roommate is making stuff up for no reason?? She’s even threatened me with police…

my roommate has always had a flair for the dramatics. She frequently massively overreacts to stuff. ONE example, we we’re looking for people interested in subletting our apartment at one point and this one woman seemed keen at the viewing. within an hour my roommate was BOMBARDING her with messages about sending us a deposit??? I said this was weird and pushy. The woman (rightfully so IMO) came back and said she was no longer interested. my roommate then went MENTAL about this and wanted to PHONE HER!?! and tell her this isn’t on and ask for ‘feedback’!?!

But recently (after I had a word with her about needing to calm down/back off a bit, as she was becoming FAR too intense) she’s now resorted to fully just fabricating issues in her mind to get wound up about it!?!

1st totally fake scenario: she asked to have spare keys cut so she could give them to subletters (she regularly sublets her room- it’s weird) and I said no, I’d rather not have spare keys just floating around. A day later (after I’ve flown back to my home country for the holidays) she has sent me a MASSIVE message about how she’s calling the police on me??? Why is she calling the police on me I hear you ask…because I’ve given spare keys to random people and they’re going to come into the apartment when she’s there!?! When I tell you I have absolutely NO idea why she would even think this, I mean I am totally clueless. I have never ever given anyone our keys other than my best friend who has a spare (even though she has given out keys to STRANGERS multiple times) and I’ve never ever had people randomly come over to the apartment??? anyway..that warranted her threatening to call the police on me.

scenario 2: my friend needed a place to stay for a night, maybe two. He’s moving into his new apartment in a couple of days and is new to the city so doesn’t have any other friends besides me there. I’m out of town so offer him my room. My roommate says that’s fine, and in he goes. I get a message a couple hours later…I’ve SUBLET my room to a STRANGER and shes very upset. This one confuses me even MORE, when my friend got there he text me and let me know she had immediately gone up to him and GRILLED him about where he’s from, how he knows me etc. he told her all of this information? When I then relayed back to him what she had just said to me he said he suspected a language barrier issue and maybe she misunderstood him? but I doubt that very much. For context: I live in Spain, my friend is Spanish but speaks fairly fluent English and my roommate lives in Spain but speaks basically no Spanish lol. My friend said he found talking to her quite difficult, and at times she looked confused (even though he was speaking English) so he said that’s maybe why she’s thought that, but still that doesn’t make sense to me???

has anyone ever encountered a person like this before? I truly do NOT know what to do? I’m moving out in a month because she’s made the environment so unliveable, but I still have a month left of dealing with her. I’m paranoid 24/7 that she comes up with more scenarios to threaten me with POLICE over???