Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: I went on a date with this girl around 8 months ago. It went really well. At the end I asked if she wanted to come hang out at my place. She (very candidly) said she wasn't in the mood to hook up right now but probably another time. That was fine, I walked her home, we said our goodbyes, but did schedule another date. We ended up going on more dates and we decided to enter a relationship after a while. 

Fast forward to last weekend, we were cuddling watching a movie and both a bit tipsy. The topic of our first date came up. I made a joke about how I had blue balls for a while after. Then she mentioned that honestly she wanted to sleep with me but was trying to keep with her policy of not sleeping with someone on their first date. This is where I should mention that she had a male roommate at the time- who I had briefly met a couple times. I had my own place, and again made sort of a joking comment about how the joke was on her since at least I had the privacy to rub one out after. There was an awkward pause, and eventually she said that she had ended up sleeping with her roommate. So I guess the joke was on me really lol.

I was pretty upset and we ended up getting into an argument. She kept saying that we weren't even a thing yet and that it had nothing to do with me. My argument was that sure that's true but that doesn't change how I feel about it. Honestly this might sound dumb but emotionally I felt as if I had been rejected in favor of some other guy that night. We agreed to talk about it when we were both sober. We ended up talking a couple days later and I broke up with her because I didn't think that was something I was going to get over. I told her I didn't think she did anything wrong, but it still got to me and I wasn't down with having those insecurities. She was absolutely livid (fair enough) and went on to go tell all our mutual friends who are pissed at me now. I didn't feel like I was disrespectful, I made it clear this was a me issue and that it was just unfortunately how things were. I never shamed her or anything. Now a whole bunch of people are all pissy towards me when it doesn't feel justified, nor do I think it's any of their business. AITA?

Tldr: gf had slept with someone else after our first date. I found out, wasn't cool with that, and broke up. AITA?

breaking up with a girl after finding out she slept with her fwb/roommate after our first date