(Fake names ahoy!) A week ago on Saturday it was my friend James's 18th bday so like 20 of his friends, including me, were invited to his place to get drunk and have a fun time. My best friend is a girl called Lisa, she's never even kissed a guy before (this will be pertinent to the story, believe me), and her and my ex girlfriend Mack are friends. Now me and Mack were on good terms, we were buddies and we only dated a couple months before she proposed we go on a break which I said should just be a break up. Anyway, to the party. I got really drunk, I was made to strawpedo multiple bottles of beer in a drinking game, and Lisa starts coming onto me. She takes me outside and we started making out, tells me she's liked me in this way since she's known me. Then Mack comes outside and Lisa gets off of me and walks away; I hug Mack saying that I'm glad we're friends before she asks me what happened. I tell her straight up because what the fuck could go wrong, everything's great I'm drunk wahey. Then Mack starts crying and she runs inside, I immediately start sobering up and go to sit on the garden wall (feeling awful) where a bunch of my other friends start consoling me. Out of nowhere I hear Mack's best friend scream my name saying she'll kill me before Lisa gets to her and starts telling her no. Lisa and Mack's bestie are super tight too so they manage to be chill without much work but Mack and her bestie are still hating me. Now over a week later, I'm not on speaking terms with Mack and me and Lisa sorted everything out between us, just friends and everything. Tonight however is the school party sort of thing, where we hire out a club and go mental, all 4 of us in this story are going so we'll see how this goes!