This emoticon can be interpreted as the following possibilities:

Expresses stubbornness or unwillingness to listen to others' advice. Means that no matter how someone is persuaded or explained by others, they still stick to their own views or ideas and are unwilling to listen to the advice of others.

Reflects an arrogant attitude of power or status. The Princess may be referring here to someone who thinks highly of themselves and believes that their position or power somehow puts them above the opinions or advice of others.

Please note that this is an informal expression that may be used as humor or sarcasm in some contexts. The exact meaning still needs to be understood in context and in context.