Beggar/Odysseus was welcomed in the palace. The suitors gave him enough food for him not to starve, they were reluctant. It was then that Antinous insulted Odysseus/Beggar. Odysseus without thinking about it, had a comeback to the insult Antinous had said. By then Antinous was really angry, and ended up throwing a tantrum. He threw a stool at Odysseus/Beggar, and no one agreed with this action that Antinous took. The news of what Antinous did made way to Penelope, who wasn't happy with Antionous's actions toward the beggar. She then questions the Beggar.
The beggar (which is really Odysseus) is made welcome in the palace. The suitors are reluctant, but they give him food, so that he won't starve. Antinous, however, is angry and insults the beggar. Without considering this action, Odysseus retorts, which flares Antinous even more. He is so mad that he throws a tantrum, during which he throws a stool at the beggar. Even the other suitors disagree with this action, as does everybody else at the palace. Penelope gets wind of Antinous' doings and summons the beggar to question him.
The characters name means fortunate, but the events. in the story show that he isn't fortunate, because he gets sealed behind a concrete wall, so sadly he isn't fortunate even though that's what his name means.