Prompt: Still happens before they’re together, preferably in season 4. From @castlefanficprompts. Sometime between 47 Seconds and Always, because of course it is.
It’s lucky that she hears the click, really. She’s been distracted the last little while, and annoyed with herself for it, which is a distraction in and of itself. She shouldn’t be pining for Castle like a teenager with her first crush. If he’s over her, well, she can get over him too. Plenty of fish in the sea.
(She doesn’t want another fish, though. She wants him. Loves him. And she can’t simply switch that off because he’s found himself a shiny new stewardess - flight attendant - whatever she is.)