That's the thing, isn't it — as far as he's seen. Spike fakes a sigh, leaning back against the counter while the coffee brews and lights himself a cigarette. His tone is even, as un-accusatory as he can make it right now.
"Jack... I'm not going to fight you on this. We've been over it to death already."
He takes a drag, clearly ramping up to something and it's not even about wanting regrets - it wasn't ever about that - but rather that he needs people to understand what they did so they don't go into it blindly again. He got lucky, it worked out for him, but without Ianto there to take pity on him? He'd be right where Tyki is right now.
"He's come back once before, you know. Same day that lit'le piemaker got married. I saw him then, saw what you left him as... a mortal man, weighed down by regret and slowly being eaten up from the inside by his own lit'le butterflies." A look at that, sharp. "You know about the Tease? You know what they do?"