Well, if I looked as good as her I might be tempted to wear a dress like that, Cambridge degree or not.
I don't get why you all want to marry Charlie. He's fantastically witty and smart, I love his work and think he would make a great dinner guest. However, I've always thought he sounded like he would make a really CRAP bf/dh, sarky and grumpy, sitting on the sofa in the dark or in front of the computer ALL day every day getting crumbs all over the place, leaving empty beer cans and crisp packets/pizza boxes everywhere as he watches endless amounts of TV/plays computer games for HOURS on end or reads all the papers on the internet. All he would talk about is TV, computer games or politics (although I would enjoy the last subject).
I mean, what if you wanted to go cycling or hiking in a nice healthy forest with him, or for him to go with you on holiday to a hot country with beaches, drink cocktails, smile and laugh cheerfully a lot and dance salsa, huh? I think you could forget it!!