He wasn't a believer yet, but he was more inclined to listen that was for certain. Just so long as Ianto didn't give him any reason to doubt what he said. It was still tenuous between them.
"No, you probably wouldn't." Jack drew in a breath. "My curse, I suppose." His curse to be able to get through retcon. Fantastic.
"And when I came back...?" Jack asked, prompting Ianto. He still wanted that proof this was Ianto.