"I'm thinking a fancy one, with coattails, and white gloves." He's not, actually, but there's room to tease.

"You don't indulge enough." ...Hm, hold on, let him rephrase that. "You don't indulge in anything that isn't me or your suits enough." They might potentially maybe go on vacation together someday. Now that would truly be an indulgence. "That said, how did you like me in suits?"