How do you know that? For all we know after the cameras went off, they may have "Swung from the Chandaliers". In this last episode, they definitely were acting married, and fully acknowledging the marriage
Considering his lifestyle, it wouldn't surprise me if he had no interest in producing a child(ren), but, we don't know that to be a fact
Uhm, because until we get some kind of evidence, that's patently not
Otherwise, he's likely also a serial killer who enjoys slashing the throats of children when he's not on screen. After all, there's no evidence that he's not
out doing it as we speak, no?