Korsak in "Remember Me" holding Jane as she finally lets out the repressed fear and pain Hoyt inflicted on her.
Jane and Maura's entire friendship and how they only stay mad at each other for a couple of episodes before making up with a hug and saying "I missed you" to each other.
Jane telling Angela she does have a doctor in the family.
Frost Mother visit's town to tell him she getting married...to a woman. Before she can tell him he notices the engagement ring and toasts her, revealing he's known for years and had just been waiting for her to tell him.