What makes a relationship romantic?

Shared Goals and Values: A romantic relationship flourishes when both partners have common goals, values, and aspirations. I love it when the two main characters are working together for a common cause. I love mysteries, and I’m a sucker for a good historical mystery where the female main character pairs up with a detective, and they work together, and sometimes against each other, to solve a crime, unravel a mystery, or save someone.