"I'm very self aware" says the neurodivergent girl who keeps writing herself plans for tomorrow that depend on her waking up with more self discipline and adherence to routine than she has ever exhibited in her life
Santos nicknaming people is obviously her pushing people away before they get to know her because people don't respond nicely to mocking nicknames from strangers. So Dennis embracing the Huckleberry nickname is him showing he's the type of person to embrace Santos for who she is