Complementary
"Rhett was telling me about this girlfriend he used to have," Blake said, a lazy smile dripped over his face. "Who only liked the orange Skittles - and Rhett always hated them."
Jackie glanced up from her crossword puzzle, nodding. "They used to have to waste Skittles before they met, yeah?"
"Yeah, and after, they could finish the bag together."
An expression of wistful knowing transformed Jackie's face. Her violet eyes clouded. Caught in sudden epiphany, Blake threw himself forward and slapped his hands on the table, shouting, "You're the girlfriend!"
"I was," Jackie sighed. "We're not so complementary anymore."