Season 1, Ep. 13: When They First Say, “I Love You”
After Jug is sent to Southside High, and FP Jones is stuck in jail due to his part in getting rid of Jason's body, Betty and Jug head back to his trailer to be together. Betty vows to help get FP fair treatment and out of jail, which prompts Jug to tell her he loves her for the first time. She says it back and the two start hooking up before they are interrupted by the Serpents who bring Jug a leather jacket proving that he is one of them no matter what.