Tony seemed to accept her arm without any apocalyptic aversion, and even kept close to her as she scanned the cookie selection like he worried she might leave him there and he would be lost in this strange land. When she stretched up to claim their poor prize, he steadied her with a hand on her back and raised his eyebrows at the cheerfully tragic box. Of course, he had the opposite reaction to the DIY aspect-- "That'll keep them busy," he noted appreciatively. This, evidently, was the deciding factor, because he snatched the box from Wanda and started back the way they had come to get back into the familiar warmth of the car. If they didn't like it, Tony could give them a fifty and tell them to try their luck with the sympathetic looking clerk at the liquor store like any normal teenager.
It was snowing by the time they arrived, so Tony didn't even claim he needed a cigarette to buy himself an extra five minutes, but ushered Wanda inside before she could even notice a nip at her nose. He handed her the bag with the cookies so that she might be blamed for them, and even stood aside to let her knock when they had reached Billy's door, looking quite busy with his coat buttons. Honestly, Billy wasn't so bad, as long as he wasn't asking too many weird questions, but he did seem to have a talent for that, and Tony did seem to have told him an unprecedented amount of personal things. Mostly, he didn't want Billy to think it was okay to bring any of that up. Cassie, too, was basically a household fixture, not quite as integral as Pepper was, but nobody ever would be. The boyfriend, that was the enigma. Tony didn't like this 'oh, you just forgot him' deal. In general, he would rather be back in his office with the door barricaded.