Re: I'll leave this here.
> "I asked my wife if she’d mind me having sex with a robot that looked exactly like the actor Gemma Chan and for some reason she said that she would mind that."
Why would she? You are in the end screwing an inanimate object (*1). Except that just being a fake boob or fake orifice of some sort, the bits come together ready assembled in humanoid form.
If an inanimate object can rival your partner for company and enjoyment of life, then you already have massive relationship issues. For people in happy relationships, it would not be seen as a threat (any more than those women who use all those electric toys from time to time).
(1) Not that I would be that interested or keen in screwing inanimate objects, but each to their own.