Kids/YA girl on trip meets cowboy poet

[Polly]

My college-age son is try to remember the title of a book he read in elementary or middle school. The protagonist is a girl. She is traveling and meets a cowboy poet (not a main character). At the end of the book she encounters him again. Thank you for any ideas!

[Rainbowheart]

How old was the girl in the story?

Were there a romance between her and the cowboy poet?

[Polly]

She is just a young girl—maybe middle school. The poet was not a romance. Thanks