Breaking news, Castle Fanatics: Kate poses a troubling question to our favorite author on Monday's new episode.

“Castle… should I be worried about your commitment to our engagement?” she asks her confused fiance.

What prompts this inquiry? A story in the newspaper about Rick and his ex-wife. This is not the kind of fame Rick is seeking.

Castle Season 6 Episode 13 features Alexandra Chando and centers on a Miley Cyrus-esque pop star who is found dead, leading this duo deep into her hard-partying lifestyle.

Assuming they are still talking at that point, that is. Watch Castle online if you need to catch up and then watch this fun sneak peek:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.