Read the excerpt below and answer the question.

hedda: no matter—i could not bear the idea that any one should throw you into the shade. tesman. [in an outburst of mingled doubt and joy.] hedda! oh, is this true? but—but—i never knew you show your love like that before. fancy that! (hedda gabler; act 4, p. 129)

to what does hedda compare lovborg with the metaphor in her dialogue with tesman?

Metaphor is " I could not bear the idea that any one should throw you into the shade"

Hedda is comparing her love to Tesman with the moon.

George returns after Julia’s leaving, impending Hedda for the manuscript. He is afraid of Lövborg because he might damage himself before he can return it. Calmly, Hedda reveals to him she copied the papers. She did not feel the need of putting her significant other "in the shade," she tells George, who has never seen the Hedda’s showing her love.  

uncanny would be like unlucky or disaster. you can look for more in the dictionary or if you have text book then turn to a. 17 but it's different with textbooks.