Spoilers for Diamonds and Emeralds Chapter 19 in 5 words or less: Rosaline's Backstory is very tragic.
Joke: So a guy walks into a bar and he asks for a recommended drink. The barkeep tells him "A grasshopper." And the man orders the grasshopper. After leaving the bar, the man sees a grasshopper and asked him "You know there's a drink named after you?" And the grasshopper asked "You mean there's a drink called 'Dave'?"