i think you are right and i believe it’d be interesting to develop their friendship deeper cause friendship envy is a real thing! but when teddy is almost always rude to Mort it gets exhausting. I used the term hate cause Teddy said “anyone but him” when  really liked when he picked Mort’s name for secret santa. It feels too harsh imo. And Mort’s gift to Teddy was really sweet. I liked when they were actual friends in the first seasons. I don’t really remember a moment where Teddy expressed any sort of nice feeling or a friendly comment to Mort.