The significance of the title, "A Certain Lady," tells a story of the lady who interacts with the man, but he is unable to see her love, and he talks about his exploits with other women to her. Both stanzas show how she pretends her happiness to the man, and he'll never realize it. It's a bit ironic that he goes out with other women, yet he is unable to see the lover right in front of him.
In the first stanza, eager lips and rapturous eyed depict the attraction the speaker feels from the man. A thousand little deaths shows the man's romantic tales with other women breaks her heart. You can find the simile from the