René M. Dailey is Associate Professor in the Department of Communication Studies at the University of Texas, Austin. She received the Early Career Award from the Interpersonal Division of the National Communication Association in 2010 and the Mid-Career Achievement Award from the International Association for Relationship Research in 2018.

• Introduction; 1. Description and prevalence of on-again/off-again relationships; 2. Differences from non-cyclical relationships; 3. Explaining on-again/off-again relationships; 4. Types and trajectories of on-again/off-again relationships; 5. Breakups, renewals, and in-between; 6. Conceptualizing (in)stability; 7. Practical applications; 8. Research agenda: potential paths of future research.

René M. Dailey is Associate Professor in the Department of Communication Studies at the University of Texas, Austin. She received the Early Career Award from the Interpersonal Division of the National Communication Association in 2010 and the Mid-Career Achievement Award from the International Association for Relationship Research in 2018.

• Introduction; 1. Description and prevalence of on-again/off-again relationships; 2. Differences from non-cyclical relationships; 3. Explaining on-again/off-again relationships; 4. Types and trajectories of on-again/off-again relationships; 5. Breakups, renewals, and in-between; 6. Conceptualizing (in)stability; 7. Practical applications; 8. Research agenda: potential paths of future research.

René M. Dailey is Associate Professor in the Department of Communication Studies at the University of Texas, Austin. She received the Early Career Award from the Interpersonal Division of the National Communication Association in 2010 and the Mid-Career Achievement Award from the International Association for Relationship Research in 2018.

• Introduction; 1. Description and prevalence of on-again/off-again relationships; 2. Differences from non-cyclical relationships; 3. Explaining on-again/off-again relationships; 4. Types and trajectories of on-again/off-again relationships; 5. Breakups, renewals, and in-between; 6. Conceptualizing (in)stability; 7. Practical applications; 8. Research agenda: potential paths of future research.