It all started with flowers - an AU story that starts during 3x13. Castle goes to comfort Kate on a bad day, not knowing that bringing her flowers is the start to something entirely different. Some references to/lines from episodes.

People have breaking points. So do relationships. When an emotional case hits close to home will Castle push his relationship with Beckett too far? Or just far enough? Sequel to Go Home Castle. Rated M for freedom later. Any M chapters will be labeled.