how does Farfrae's visit change Lucetta's view of Elizabeth-Jane?

Instead of being cautious, Lucetta openly shows interest in the stranger and begins flirting with him. Although she shows a tender heart in wanting the lovers to stay together, she completely ignores the young man's plan to see Elizabeth-Jane and keeps him for herself. She lies to attract the young man: although she insists that she is not a coquette, her flirtatious manner with Farfrae lies for her. She manipulates people again, keeping Elizabeth-Jane around just to keep Michael away from her.