How do you get over being turned down?

Suck it up and move on with your life, I knew people who would get really depressed because they got turned down by people and then they turn into this reclusive creature that all they can do is start complaining about crap. Call me a soulless abomination, but I tend to laugh at them when they start turning into some sort of "attention seeker". I've been turned down and, like other things, I tend to be unfazed by it and just don't dwell on it and make it worse than it really is.

^^ mrmanguy is absolutely correct. If only getting turned down once like this will get you down, life will be very very difficult for you.