Telemachus fucked up and now somehow his father thinks he and Antinous are dating and he think Antinous was protecting him from the other suitors! On the day his father got home from 20 years away Telemachus and Antinous where in a compromising position that started as trying to kill eachother his father found them and decided that Antinous was protecting him and it's not like either corrected him and now the pair are stuck pretending to not want to murder eachother for mutual benefits for Telemachus he doesn't have to embarrass himself and for Antinous well he doesn't get killed by the vengefull Odysseus... So that's how this has happened.

Telemachus is stood in the corner of the main palace hall a celebration of his father's return and Antinous is next to him teasing the prince

"Leave me alone Antinous..."