It does change things. In some ways, it's making him feel less sure of himself around Spike - okay, this is the first time he's been around Spike since the announcement, but he's been thinking about him, of course he has, and what this all means for their odd and rather uneven relationship, which is still a hell of a lot more about Ianto and him, and Ianto and Spike and a lot less about him and Spike, and probably always will be.
"Surprisingly enough, I don't actually have all the answers," he says dryly. He snorts softly and waves an arm around as if to encompass the dome in general. "I thought I had this all more or less figured out here, and then they throw a complete change to the system at us and I feel like I'm flailing and lost all over again!"