Designated Hero: Pam. Granted, yes, she is the more faithful daughter and the better wife between the two sisters, but she's still snooty in her own right. She doesn't like looking after her nephew and was downright dismissive and condescending to Nick, even after learning about his sad past.
Tear Jerker: The movie itself with Alice and Charlotte, especially when it ends with Charlotte's death.
What Do You Mean, It's Not Symbolic?: Jillian's hair. Throughout much of the film, it was worn in an unattractive, mousy style up until she confronted Andrea, to show her newfound confidence that Charlotte (of all people) gave her. Even from the rest of the film's duration, it looked better than it previously did.
What An Idiot: Even when the truth was staring him right in the face, Chris still is blissfully unaware of Andrea's cheating.