When it comes to the complexities of human relationships, new research suggests that our motivations for committed partnerships and casual encounters are more distinct than previously thought. A recent study published in Personality and Individual Differences challenges the long-standing idea that people’s relationship desires fall on a single spectrum, with casual sex on one end and long-term commitment on the other. Instead, the researchers found that these desires often coexist, suggesting that they are better understood as separate dimensions that independently influence our romantic behav…