Martin is like that special brand of introvert that turns into an extrovert if there are no other extroverts to speak for the group. He seems more confident during the apocalypse because he’s got Jon there and even though Jon is a literal demigod he’s still not really comfortable talking to people.
Martin rolls up to the Flesh Domain Wendy’s like: EXCUSE ME. He asked for no pickles.
Thinking about Martin in season 4 and how depression really does make you feel trapped and helpless and like all of your friends are distant and unreachable even though they’re technically still in your life and how you really do just go along with things even if they’re shit without ever considering that you might be able to change them because it’s easier than confronting the fact that you’re so numb you can’t feel anything anymore.