I (26M) went on a trip with two coworkers (24F) that we planned earlier this year. They invited another coworker (24M) to join later. We agreed to split costs for things like groceries, a rental car (under my name), tickets, and some errands. I fronted the costs for a few things like festival tickets, groceries, and an e-SIM, with the understanding they'd pay me back.

We had three group rules: safety first, we all come home together, and no randoms in the Airbnb.

On night one, after barely sleeping during our travel, I stayed in while they went out with two men they’d just met on Hinge. They got blackout drunk and didn't respond to my texts until late. Around 1 AM, one of the random men tried to enter our Airbnb alone. I told him to leave.

At 3 AM, they all returned—drunk and soaking wet. My coworkers told me to “close my eyes and cover my ears” while they hooked up with the two strangers on the balcony. I felt shocked, uncomfortable, and unsafe, so I quietly packed my things and left at 3:30 AM.

I paid $50 to get the rental car out, found an overly expensive last-minute hotel, and continued the trip solo. The next day, they were apologizing for what happened the night before and admitted how intoxicated they were. I responded by saying I didn't agree with what they did and felt extremely disrespected. They asked for their basketball tickets so I sent them to avoid conflict and still wanted them to enjoy.

Later, Coworker 3 arrived and noticed the Airbnb was trashed from the state they left it in (sand on the beds, colourful stains, and a burnt spoon in the sink). Also, they haven't stayed there since after day 2. He stayed one night and moved to a hotel because of how disgusting it was. When he tried to reach out, #1 told him she “didn’t feel safe around me,” which confused both of us.

After the trip, I calmly asked to be reimbursed for agreed-upon shared expenses. Instead, they refused and accused me of stealing groceries, going through their luggage, taking the car for myself, and "ruining their trip." Meanwhile, they kept partying and posting about it online. They were also saying how I owe them for their food and uber expenses.

Now they’re spreading rumors at work, saying I’m “scary” and “untrustworthy.” But all I did was follow our rules, pay for things upfront, and remove myself from a dangerous situation. I didn’t cause a scene and I chose safety and peace.

Now they’re refusing to pay me back for what we agreed to split on.

AITAH for leaving and finishing the trip on my own?