Ok, the speaker is a man who lost his lover. He's depressed. a Raven flies in and repeatedly says "never more." the speaker asks him over and over depressing questions almost to make himself feel worse. that's the best I can give you.
The answer is "ah, shun the horrid gulf! by scylla fly. 'Tis better six lose, than all to die.' because he has said that he cannot be defeated even by a someone greater than him.