Kyra Sedgwick's final line in the series finale is the same as her first line in the pilot: "Looks like love."
Despite Brenda's comment in the last scene that she looks forward to working with the squad in her new job, while occasionally mentioned she did not make an appearance on the spin-off Major Crimes (2012). Her husband, Fritz Howard, did continue as a regular in the spin-off.
TV shows often try to to "bookend" a series by including something from the first episode in the last episode. In addition to the use of the "looks like love" line, both the first and last end the same way, with Brenda indulging in her guilty pleasure, a Ding-Dong.
Last show of the series.