I’m pretty sure he means he doesn’t want his poetry to end with him dying, but more of, he hopes his poems continue to give strength to those who read them, recite them. I hope this helps!
He feels that people will make fun of him or he will feel left out.
The answer is "Her eyes darted between the two of us like sparrows between trees." because similes are comparisons that usually use the word "like" in them as a way to compare.