"What's the difference between violet and purple?"
"Violet is a spectral color, meaning it's a true color at the end of the spectrum, between blue and UV light. Purple, on the other hand, is a composite color, made by mixing blue and red," he replied.
"I love how you know everything," she said, gazing at him in a mixture of wonder and adoration.
He smiled inwardly, glad to have done his research on her favourite color. She didn't know how many times he'd stalked her facebook profile, did she?