I caught my roommate and her sister naked in my bed
My roommate (23 f) and I (24 f) have been living together for the past couple of years. We slowly became friends and I started to trust her. When I am gone (which is about every weekend), I have her go in my room to feed and water my cat (3 f).
Lately I have been coming back home to certain things being out of place. Things like, the pillows on my bed shuffled out of place like someone laid there, my bathroom door closed (I never close it, my cat needs to access her litter box), and jewelry or perfume not in the correct spot. I never thought much of it, I knew she needed to go in my room to feed my cat and people are curious.
This most recent time, I came home to something very odd. It was late, and the only thing I wanted to do was go to bed. Well, I walked into my bedroom and there was my roommate and her sister (22 f, who I have only met a handful of times) laid up in my bed. They were CHILLIN. T.V. on, snacks, all comfy in my bed...
She immediately started to freak out "oh my god you were supposed to be home in a few days" telling her sister to get up and leave. I honestly did not even know what to say. She kept apologizing and saying she did not know I was coming home. Her sister got up still wrapped up in my blanket. I asked her if she could give me the blanket back. She said she couldn't because "I have to put clothes on". I looked at her and quickly realized that she was BUTT NAKED wrapped up in my bed! I was appalled. I gave a gross look, and just sighed. When I went into my bathroom, I saw a lot was out of place and it was clear my shower had been used.
Another concerning thing is how often she talks about how her sister is a liar and thief. She steals from family members and shop lifts. Why would she skip out on my stuff? My roommate herself has made comments about how certain things in my room are "valuable" and has joked about if I was not so cool she would def pawn my stuff.
I think this is all mostly my fault, because I am really chill and I do put up with a lot. She has never blown up on me, but I have overheard and seen her blow up over small things on other people. I fear if I bring this up she may freak. But now I am at the point where I know I have to say something. What should I do and how do I handle this without her blowing up?
Thanks in advance, I barely use reddit but I have been listening to this podcast for a while now (hey morgan) and thought why not go here. I hope I followed the rules correctly.
**edit: I have an open door policy for my cat. She is free to roam the entire house and has large windows, a cat tree, and automatic play toys that she uses. I have been leaving every weekend for the past few months to see my grandma who is in hospice and I am only gone 3 days at a time. When I got home that night, my door was closed with my cat outside of the room. She said she was scratching at the door to get out. But I always keep my door open, even at night so that should not have been an issue. My roommate does care about the cat and I know she would never do anything harmful to her. However, I am getting a camera and automatic feeder so there will no longer be a reason to be in my room.**