Final answer:
Antinous' actions violated the Ancient Greek custom of xenia by showing disrespect towards guests.
Explanation:
Antinous's words and actions went against the Ancient Greek custom of xenia by displaying disrespect and hostility towards guests. In Ancient Greece, xenia was a sacred hospitality custom that required hosts to treat guests with kindness and generosity. Antinous' behavior, such as verbally abusing strangers and refusing to offer hospitality, violated the principles of xenia.
Learn more about Ancient Greek custom of xenia here:
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