You were a siren. And, Odysseus killed your dear sisters right in front of you. You trusted Apollo enough to take revenge for you, as he could decide dor Odysseus to keep suffering in Calypso's Island and he got along with your sisters who had been ruthlessly killed. But nooo

When you found out he agreed to set him free, you went straight to his Island to confront him

"My sunshine! You're back! What's with that look...?" He simply said at sawing you, like he didn't do anything bad, with that gentile voice he used to free the man who hurt you this bad