Booze has a habit of bringing out the worst in people. Inhibitions dissolve, and some folks say and do things they regret, sometimes in the moment, most times during the hangover.
One guy lost his cool after his pregnant wife’s best friend got tipsy at dinner and proceeded to make an off-color joke about having always loved him. Incensed, he gave her the boot, but now his wife is mad, so he’s gone online to ask if he’s the jerk.
More info: Reddit