"That's the only thing that matters, far as I'm concerned. Him."
Never would've done any of this if it weren't for Ianto and his diplomatic ways. Sure, Spike's worked pretty hard at getting this right but he would've given up a long time ago if Ianto hadn't so clearly wanted it to work. Amazing, really. Then again...
"Although... under different circumstances, I probably could've whored myself out to you."
Like they talked about way back when, blood for handjobs. He considered it, briefly, but the rules didn't allow for it and chances were high that he would've talked himself out of it immediately anyway.