Cordelia is always going to be high maintenance - you're going to need money and charm aplenty to keep her interested. Flattery will work - tell her how nice her hair is, and go armed with the most expensive, chi-chi flowers you can find. She likes to be kept in the finest style, and a really cool car is a sure way to impress her. Maybe you could try the English fuddy-duddy look - you never know, it just might work!