"Oh, I beg your pardon," Aziraphale replies contritely. "I've never heard of such a thing before. The demons in my world don't leave a... a lineage." A common misconception, likely due to all the religious emphasis on an anti-christ. "What's that like, then? Being a tiefling?"

Aziraphale is only hoping for no pranks during the healing process, he has no expectations after that. "You're welcome," he says brightly. "I am an angel, after all, it's what I do. Now let's go see about that coat, hmm?"

He could probably fix it with a miracle, but he's enjoying Molly's company and would prefer accompanying him to the Shopping District, as there's likely quite a bit he'll need to get used to, now that he's in the Nexus.