Can we lay the blame at the Doctor’s feet? It’s not Clara’s fault the Doctor never says, “I’m married”. She kisses him, and not only does he “blush,” but then he GIVES HER A KEY to his TARDIS.
If River Song wants to kick anyone’s arse, it should not be Clara’s.
(Doctor: I’m assuming that’s for something I haven’t done yet. River: Yes, it is. [x])
Her husband is the one who has a lot of explaining to do…