Betty came to look ay JB suddenly whens he said that. Jughead tried to go home, and his mother told him no? No wonder he looked so defeated when they found him that night at Pops. When she noticed JB conflicted Betty placed her hand on her shoulder.
"I'm going to work on getting your dad out. He's not a terrible person, JB." Betty said reassuring her that no matter where they were, she was going to do everything she can to get him home. Not only for her sake but also for Jugheads.