What makes a relationship so special?

My boyfriend treats me better than I have ever been treated before. He worships me. He pleases me sexually, intellectually, emotionally... literally I cannot image being happier. And I am not complaining. What I want to know is: what's different this time? Men have NEVER thought I was this special. Is it possible that he thinks I am something that I am not? I know that this might be (probably is) my insecurities coming out.

But, setting my insecurities aside... Men: Do you find yourself being MUCH more into a certain girl than you think most other men would be?