Smith and Talas' storyline, after everything's done and Smith has left for Ankara, when Smith looks at the watch he had previously given to Talas as a token of betrothal, and throws it away...
Amir's reaction to the news that her sister has died, it's one of the few times we see her cry, as she is so confused as to how it could happen since her sister was always very healthy. Sadly readers know exactly how she died, her husband beat her to death. This is what caused Amir's family to try and take her back because the man demanded a new wife from them.