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This story requires a bit of context, but my [19F] roommate, M [19F], has currently locked herself in her room after an argument with me and I don’t know what to do.

Tonight, M and I made brownies, and I decided we’d go bring a brownie to our mutual friend, V [21M], who lives on our floor. V wasn’t there, so we gave a brownie to his roommate to give to him later. Before the roommate closed the door, M asked “Did you know herpes has the same letters as sphere?” We figured that fun fact out when she was playing that word scramble game and it was kinda funny but I was mortified that she’s just say that to some guy we don’t even know.

We went back to our place, and for more context my other roommate B [20F] and I share a room while M has the other to herself. We go into my room to give B a brownie and M and I tell her what happened with V’s roommate.

B couldn’t believe M would say that and she understood why I was embarrassed. M didn’t, and she demanded why I was embarrassed because I “wasn’t even there” (I was a few feet down the hallway when she said it.) I told her he’d just seen me so I know I was there and would probably think of herpes whenever he saw either of us around the building.

M said “Oh, so you’re embarrassed to be associated with me?” This entire time I thought it was just lighthearted joking about the awkward conversation, and I responded jokingly “Only when you talk about herpes to guys we don’t even know!”

This set M over the edge, and she yelled something I can’t remember at me and B and stormed out of our room and into hers, slamming both doors. This is where we’re at right now. I put a couple brownies on a napkin and set them in front of her door and knocked before going back to my room, but she didn’t open her door and they’re still sitting out there.

I understand I overreacted. I was kind of irrationally embarrassed by the whole thing, and I didn’t realize she was upset by B and I jokingly exaggerating it like she’d done something awful. But she gave no sign that she was upset before running off and slamming our door.

I also have an anxiety disorder and often get nervous talking to strangers, which M knows. She said she was going to ask V if he knew that herpes and sphere are spelled with the same letters, and I thought she was probably kidding but still told her not to, although I know V better than she does and he’d probably just laugh, so I wouldn’t have really minded. I had no reason to suspect she’d say it to his roommate, we don’t even know the guy’s name.

TLDR: My roommate asked a guy on our floor who neither of us knew if he knew that herpes and sphere are spelled with the same letters, I told her afterward I was embarrassed because I was there too. She took this to mean I was embarrassed to be associated with her, even though I said it was just her talking about herpes, and now she’s locked herself in her room. AITA?

causing my roommate to lock herself in her room over my embarrassment at her telling a herpes fact to a stranger