Is this answer good enough?

Mr. Peters learns to be satisfied with his life and decides not to use his third and final wish. Did Mr. Peters make the right decision to help him resolve his internal conflict? Compose an argument that is at least one paragraph in length. Support your claims with at least two valid and relevant pieces of evidence from the text, including direct quotes and page numbers.
My answer;
Mr. Peters did make the right decision to solve his internal conflict. His internal conflict was whether or not to turn Lieta back into a sawn, so she can be happy with her sister. The first wish he made, he wished for a beautiful wife. That wish brought him Lieta, his beautiful wife that use to be a swan. Before she was turned into a wife, she was happy with her sister. While she is human, one thing she did was visit her sister at the river. While Lieta was separated from her sister, she began to grow sickly thin and pale. Mr. Peters made his second wish to turn Lieta back into a swan Direct pieces of evidence to support this are, "For a time he thought that all would be well, but then he saw thin and pale she was growing." pg.75 "Then he knew that it was hopeless and she would never be happy as a human. He stooped down and kissed her goodbye, then took another leaf from his notecase, blow it out of the window, and used up his second wish" pg.75
What should I change about this to make it better?