If you broke up with your ex, there was probably a reason at the time. Mind you, maybe you guys just weren't right for each other THEN, but things could always change in the future. My hubby and I were together for 2 years, got engaged (we were young, I was 19 and he was 21), and then I got cold feet and broke it off and broke up with him. We were apart for 4 years and didn't even talk very much, if at all, but to keep a long, LONG story short, things worked out, and we're beyond happy now. BUT, we both agree it wouldn't have turned out as well if we'd gotten married the first time we were engaged, just because we had a lot of individual growing up and growing into ourselves to do. And yes, I missed him more and more each time I started talking to a new guy who would inevitably fall WAY short of my hopes and expectations.
Take the time apart to learn about yourself and what you want and what you hope to get from a guy - but also try not to let the standards your ex set overshadow what could very well turn into a lovely new relationship. On the flip side - don't settle just because you want to be with someone! There are a lot of fish in the sea and you may just have to go through a good number before finding the one who is right for you. But don't be in a relationship for the sake of being in a relationship - that is very possibly the loneliest feeling you can have if you feel like you're being shorted by the person you're dating. You're a beautiful girl, you deserve to get something and someone wonderful