It's one thing to assert, in profane or non-profane ways, that his wife would never sleep with a waiter. It's another thing to say it in a restaurant to another waiter. It's entirely another thing to put out an industry hit on him through the propaganda missile that is Lloyd.
Ari believed Mrs. Ari, his estranged wife, was sleeping with a waiter at Flay's, and called her sister for confirmation. She let it slip that Mrs. Ari was seeing someone in the restaurant business. Ari assumed it was the waiter, hung up the phone, summoned Lloyd and told him to destroy the guy's "Mad Men" audition.
That's what makes Ari Gold such a special character. And it's what made the cut this week for the Ari Gold Mine.