Is It Me, or Is Our Relationship Churning?

A recent study, reported in the Journal of Adolescent Research, caught my eye. It was a term in the title of the article that I had never heard before: "Relationship Churning in Emerging Adulthood: On/Off Relationships and Sex With an Ex."

Relationship churning? What could that mean? I had, literally, a gut response, remembering all those times when I couldn't figure out if was still in, or completely out, of a relationship. Did that slammed door denote the end of something or was it like a s...