As Robert says good bye to Edna before leaving for Mexico, Edna explains on how she was hoping to see Robert next winter. This is Robert's response to Edna's comment.
"So was I," he blurted. "Perhaps that's the-" He stood up suddenly and held out his hand. "Good-by, my dear Mrs. Pontellier; good-by. You won't- You won't- I hope you won't completely forget me." (Chopin, Chpt. 15)
What does this response tell reader's about Robert?