Betty and Jughead

The friendship between Jughead and Betty started before Chapter One: The River's Edge, but it wasn't until recently that the two started to spend more alone time together.

Season 1
Jughead, alongside Archie grew up with Betty in Riverdale. In episode, Betty asked Jughead to use his well-found journalist skills to help her figure out what really happened to Jason Blossom on the 4th of July. Betty mentioned there's one person no one had been talking about which was Dilton Doiley and his scouts. Throughout the episode, Jughead went on to investigate who really shot the gun on the 4th of July. During scouts, Jughead went to confront Dilton only to be shunned away. Later on, a scout who was sitting at Pop's Chock'lit Shoppe confessed that Dilton was teaching shooting that day at the lake and was the one who fired the gun. Once caught, Dilton was willing to compromise with Betty and Jug. Betty and Jug were to leave Dilton out of the murder case and forget that he shot that gun on the 4th of July in exchange for vital information. It was revealed at the end of the episode to Betty and Jug that Dilton saw Geraldine Grundy's car early that morning by the lakeside.

The two have been shown to have pet names for each other with "Betsy" and "Juggie".