I think talaniman has a good point. It's best to just keep moving ahead whenever a breakup happens. In fact, the person who moves on last is the one who's wondering "why is he/she so happy without me? Don't they miss me? I have to have them back!" It's a great ploy.
Also, I want to add:

Originally Posted by
UnwantedHero
she also told me she wanted to be single and didnt want boys in guys in her life for a while.The next thing I know is that she has 2 dates lined up with different guys.
The bold-faced above is absolutely the biggest crock of sh!t girls will hand you.
What she means is she didn't want
you in her life at the time. A girl is ready to date whenever a good guy comes along: if she gives you that, it's just that you're not the guy she's looking for.
Many is the time I've heard that line, and then the girl turns around and crawls in bed with someone else. Learn to recognize the differences between what girls
say and what they
do and you'll be fine.