Yes it does happen, occasionally someone comes into your life that blows you away and we weaken a bit and put them on a pedestal. What you need to do is come from a mind set that you value yourself more than you value her, she has to prove herself to you, she has to win you over and prove herself worthy of your time, you are the prize she has to work to win over.
Once you come from that kind of mindset you will lose the neediness and come across higher value, different from the rest of the kiss arse blokes.