Needs Help: Spy Couple

I'm not entirely positive what this is. There's a two line description, one of which is just explaining that it's usually lighter than a Spy Drama. Is the trope simply "two spies are a couple"? If so, I'm not positive it's a trope. The image being Mr And Mrs Smith seem to indicate that it's... Dating Catwoman?

Of the examples, maybe four actually have context. The rest are just naming a show and, if we're lucky, the people in the couple as well.

Yes, the trope is simply "a couple are spies." Seem perfectly plain to me.