My god, wouldn't most of us want to have the luxury of being a newly-wed, stay-at-home-r for a while?!
I agree that the DM has probably completely twisted (or invented!) the story, but I have heard this opinion of Kate's probable plans from many people for weeks.
Good on her if she takes however long to start engagements. It's not like whatever she earns in a job wouldn't probably be cancelled out with the (tax-paid) security she may need to have.
Make th most of it Kate, I know I bloody would!