<human>: Can you give me the gist of the text in a nutshell?

Obviously I'd never word it as I have in the title, but to put it succinctly enough to fit in that little box it describes the situation pretty well.

Brief history, we've been dating about a month.  She's coming from one long-term relationship and I come from several short-term relationships.  To be completely honest, from a purely physical stand-point, she's not the most physically attractive girl I've ever dated but I'm definitely attracted to her and I think she could easily be considered conventionally attractive.  To consider the whole package (personality especially!), I think she's leaps and bounds better than the girls of my past; I've definitely fallen for her.  However, it's true that in the past I have been somewhat superficial and it's only been somewhat recently that I've decided there's more I want in a relationship than just looks.

So as for my problem, she has said on several occasions that she thinks I'm too good looking for her or that she thinks it is a valid concern that other women will come along and try and steal me away.  Honestly, I do think in a relationship it's at least somewhat important to be near the same level of attractiveness, but as I see it we *are*.  I think she may just overlook or not understand some of my conventional "flaws".  As a basic example: I'm 5' 8" which for many girls seems to be a big turnoff, but she might not even consider that since she's only 5' 2" and we fit together so well :)

As I see it, the largest hurdles that could kill this relationship would be either her insecurity or my insensitivity regarding this issue... or am I just putting to much thought into this and I should brush off her comments?
<bot>: girl says I'm too attractive for her, or she's not attractive enough for me considering my past.  How do I reassure her that I not only think she's beautiful, but so much more!