Though she is something of a Delilah, she is still considered the heroine of the novel.
Leila! she said enigmatically. Have you seen her? I went to her flat last week with Dad - he likes her. Delilah is her real name, you know. All men like her. And Captain Fort is her lover..
And Delilah said to Samson, Tell me, I pray thee, wherein thy great strength lieth, and wherewith thou mightest be bound to afflict thee.