Snow
Somewhere down the lane, a licky boom boom down
It's in the books he asks that. In the show he asks Joffrey to marry Marge.
I think the change makes sense. Raising Sansa's hopes even higher before they crush them again.
It doesn't make sense though does it. Margaery isn't in the habit of crushing Sansa's hopes. She's being sincere. She knows the benefit of having Sansa in here family.
It doesn't make sense why Loras isn't a member of the kingsguard. It makes his character now quite pointless. Only thing he's ever been is a knight. Of course he'd become a member of the kingsguard.