I'd consider her a keeper as she clearly loves you how you are. Everyone has their pros and cons, and she looks like she sees your cons, but also your pros and still loves how you are.
Or you fall out of love with your job, or you feel like you're putting more effort into the job than your boss is... I think this analogy is starting to break down.
Have you expressed insecurity with your size? It sounds like she's trying to reassure you.
Not all of us, including myself, were destined to be porn stars, my friend. If it's a relationship based on more than physical attraction, it shouldn't matter. And there are lots of ways to please a partner... :P