[f/m/f] I (f) hooked up with a friend(m) and his girlfriend while my boyfirend was in the other room and am still thinking about it

*This story is entirely true, except the timeline is skewd and details are taken out to make it more vague for obvious reasons. Also, I am a drinker so sue me, I cant always remember exactly what we said to each other so I made it a little bit up, but the level of flirtaciousness and banter was same. I cheated so if you arent into that sort of thing look away. Also have never posted on reddit before so no idea how the formatting works.