Is AUTHOR wrong in the post ? POST : So a little bit of backstory, my friend and met on the first day of college (almost a year and a half ago) and we have pretty much been best friends ever since. We spent at least an hour together a day since freshman year, and as sophmores we live together in a house. One of his best friends from his home town is a pretty cute girl (lets call her rebecca), who has a pretty strong history (about a 2 year relationship) with his other close friend (lets call him jeff) . 

One weekend about 4 months ago, rebecca came up to visit my best friend. Rebecca had a boyfriend when she came up that wasn't Jeff, because Jeff and rebecca broke up about 6 months before this. Long story short, Rebecca and I ended up hooking up. In my defense I had no idea she had a boyfriend until after. She told me she really liked me and that she was super into me and blah blah blah. So when the weekend is over, she heads back to my best friends home town (about 5 hours away) and broke up with her boyfriend. Since then we had pretty much just had a snapchat streak and texting. 

For new years, my buddy and i drove back to his hometown to celebrate it with his parents and then go to a party that night, where both jeff and rebecca would be. Now I didnt have any expectations for this party, since I thought that jeff and rebecca would be together due to their strong history and what not. Well when we got to the party rebecca was all over me, and i was trying to play it cool, because i wasn't trying to make out in front of a bunch of people i didnt know, and i told her i didnt want to make jeff mad, but she reassured me that there were no more hard feelings. About an hour and a half into the party i told her I had to go to the bathroom, and she said she did too, and i obviously had no problem with it, so we went to the bathroom together and we made out and what not, and jeff ended up walking in on us. After that he pretty much came up to me and told me to find a different party to go to, and walked over to rebecca and shoved her causing her to fall down, telling her to "be more private" so that is when I walked over and told him to back off, and found my buddy and we all left, including rebecca coming back with us. Since then, he has not talked to any of us, including rebecca or my best friend, leaving him on read 3 times. My best friend insists it isnt my fault, since theyve been broken up for over 8 months, and I wouldve had no idea that he still had feelings for her, but i sure feel like a huge asshole. 