Licking my wounds
Taking time off from socializing and/or going out using that time instead to heal from an embarrassing experience
Friend 1: "What are you doing siting all alone just staring at the telephone? There's a party happening over at Stacy's."
Friend 2: "I'm just sitting here licking my wounds...and I don't think I'll be finished soon..."
Friend 2: "I'm just sitting here licking my wounds...and I don't think I'll be finished soon..."