For psychologists, romance, attraction and love are not just the stuff of poetry – they’re also a subject for research. What are the qualities of a successful relationship? Why do some relationships endure while others fail? What do we gain from our relationships? How do we know which ones are worth holding onto or when it’s time to quit? Gary Lewandowski, PhD, a professor of psychology at Monmouth University, delves into these questions and discusses how understanding the science of relationships can help us strengthen our own.