She didn't want to be the receiver of memories because they made her very depressed and she felt empty so she asked to be released so she doesn't have to deal with more horrible memories, they made her feel alone and that there was so much sad times. She had to face things she has never felt before and it was too much so death was the answer.
Answer:
By the guard
Explanation:
because you can remove it from the sentence and still it would make sence
To endure unnecessary inconvinience.