[ John offers the bottle again. He really means to show Carver he's welcome here, that he can relax, that he can have, that he doesn't need to deny himself. John knows what it's like to have to unlearn things like that, though not to the extent he images Carver does. But John can offer him this much. ]

I thought my old partner was dead for years until she showed up one day. You truly never know. Sometimes I still think she'll show up out of the blue again.

[ He says "think" but he means "has nightmares". What would Kara do to him next? What would she try to take from him this time? He doesn't think his life would be enough if she truly managed to cheat death a second time. ]