I’m pretty sure I’m the asshole in this one. But here’s the story, I just broke up with my girlfriend of 2 years ago because I needed to explore and the relationship had gotten progressively toxic, we both were not good for each other towards the end so I called it off, and ended things on relatively good terms. Flash forward 2 weeks and I have to sleep over at her best friends house. Because of a snow storm and I’m really good friends with her best friends brother. Well, I ended up talking to her best friend and one thing led to another and I ended up sleeping with her. And have continued to see her, I still really haven’t had time to process everything. But it doesn’t feel wrong. And she feels the same way. It’s been messing with me, because I am potentially fucking up a great friendship between my ex and her. 