Who is Ben McKinnon from Montana Sky and what is their importance?

The oldest brother of the McKinnon family, Ben runs Three Rocks Ranch with his family. Three Rocks adjoins Mercy Ranch and Ben has known Willa her entire life. Though Ben has always felt an attraction to Willa it is something he has never acted on. Despite this Ben is unable to keep from teasing Willa, constantly making veiled comments, trying to get a reaction. Eventually, the couple develops a romantic relationship.