Jack raised a brow, but didn't speak just yet. So he was trying to rekindle any spark that might be left between them. While Jack did not want to admit that he might still have feelings it was hard to deny it when Ten was sitting in the same room with him. But he loved Ianto now and Ianto really loved him.
"Yes you like fire, I remember. You also like tricking your partners. Or was I just that special, Tennison?" He never used his full name, he always loved the nick name, coming up in his mind about something sexual to go along with it. "What is your real reason for being in my house? I can't imagine that you were out and about and just happened to think, 'Oh I need to go bother my old lover'."