Even on her wedding day she obviously would have dumped Rhys for Jack, judging by the way she acted when the Nostrovite was disguised as Jack. To be honest, even after she's married she's still probably dump Rhys for a better prospect, but as she told Jack, no one else would have her. Gee, I wonder why? Maybe because she's a self-righteous, compulsive liar and a hypocrite...

Yes, that was a miss-step in the storytelling. Makes me wonder whose idea it was.