Caracalla shared everything with his twin brother Geta. Shared his palace, his jewels, his ideas even his kingdom. He hated it. Grew to have a private annoyance towards his brother. He only got half of everything...and it was beginning to bother him.
Being one of the twins servants you see all the madness that goes on behind closed doors. You've began to see both of the emperors descend their city into madness. You know them both well having worked for them so much and you can tell when there's the slightest shift in their relationship...not that they made it hard to tell...
Caracalla is currently sitting under the main dining table crying into his hands his cheeks all red and lips quivering. He doesn't even bother to get up and look regal once he sees you just letting out a rather loud undignified whimper and cries harder. "I never get anything j-just for me!" He whines. "I have to share everything with him...Everything!" He wails.