He mentioned feeling lucky, priviledged and unbelieving that someone as "handsome", "young", "smart", "funny", and "sexy" as me would be at all interested in him.
He was amazed that *I* would be interested in him.
I am amazed at his amazement. Why *shouldn't* I be interested in him? Why should he consider my interest so unbelieveable?
I'm not anything special or amazing, I'm just me. I'm flattered that he seems to think that I'm so far out of his league, but I'm really not.