Answer:
Nothing.
Explanation:
It's a fictional character that has no consciousness. So what if people "like" the character? It's not like the character likes anyone back, or can suddenly become aware of your emotions.
The fact that you see your friend as a potential threat for holding a similar interest in the fictional character holds no basis for logic.
The truth is, if you for some reason are upset that someone you know likes the same fictional character you like, then you are being petty.
Answer:
The arbitrariness of the sign is a central property of natural language (when regarded as a system of signs) that was emphasized in early European structuralism, esp. ... Linguistic signs are arbitrary insofar as there is no direct link between the form (signifiant) and the meaning (signifié) of a sign.
Explanation: