Break the Ice
Disclaimer:I clearly don't own Riverdale, Archie, WB and whoever else owns it! Written for gameofcards prompt was to using famous idioms as inspiration.
Summary: Betty will figure out the mystery of Jughead Jones. Maybe not today but she will figure it out.
Take a Rain Check
Betty loves working with Jughead on the newspaper and she enjoys his dark humor. Sometimes, she wonders what is going on with Jughead, but he's very observant. It's how they could solve what happened to Jason Blossom and who killed him. In the end, they are a powerful sleuthing duos. Someone, once compared them to be like Watson and Holmes. Betty knows that Jughead is very like Sherlock Holmes. They are both smart and observant about human nature. It's probably why Jughead figured out who murdered Jason before she did.
It's probably why Betty can't figure out why Jughead said he'll take a rain check on the milkshakes that she promised to buy him after they solved the case. Perhaps Jughead's family won't let him stay out too late. She'll crack the case of what's bothering Jughead Jones, but tonight she needs to get her old-fashioned vanilla milkshake.