What must be the best theme of the poem entitled i wandered lonely as a cloud?

I wandered lonely as a Cloud (Daffodils) Theme of Happiness. "I wandered lonely as a Cloud" is a poemthat just makes you feel good about life. It says that even when you are by yourself and lonely and missing your friends, you can use your imagination to fine new friends in the world around you.

Because anne thinks margot is jealous towards her and peters relationship.