Jesse went to prison for hopping a train to Providence without paying. Another episode for ClinkShrink!
He's back in Paul's office with his dad, and dad doesn't have much use for shrinks. He tells Paul he should have been a plumber. And now that he and Jesse are cool, Jesse doesn't need to come.
Paul talks to Jesse alone. He implores Jesse to stay in treatment, and he puts it in terms of how he cares for Jesse and how Jesse will lose the gains he made. To watch Paul, leaving therapy is a catastrophic event, one that warrants blowing a few cerebral blood vessels. It's a do or die deal.
For once, could Paul just say, "I'm glad this has been helpful to you. I think there are still issues to address and it could continue to be helpful to you. If you need me, please do call."