The tone in the last stanza is regretful. The poem is about a man who received advice from a wise man that he can give away all his wealth but not his heart. He's told that once you give away your heart, you lose it and end up regretting it. He experiences it and regrets afterwards.
The part where it says she plans to spend six hours every weekend studying in the library
The inncoerct word is flies and it should be flew.
Hope this helps!
"shed" is the noun that is the object.
