Ridge has decided to propose to Sardelle, so he asks advice - from 2 people. He gets it from his mom, unasked. One person panics, thinking their SO is about to propose, and the other (plus mom) suggests a nice restaurant and well, a formal affaire. IOW, NOT what he'd been thinking about. He decides to ignore most of the advice, only to discover that his asking around had taken too long and Sardelle had made her own arrangements - involving a dragon. Hahah!
As an aside though, it would appear that mommy might have trapped daddy into marriage there. That being the case, perhaps I'm not so sure I feel a lot of sympathy for her.