However, I think it's more common for a man to say this to resign himself to failure to woo a woman. That is not healthy. Saying you're not good enough is a copout that doesn't help.
So, in short: saying you don't deserve her, but she gave you her heart because God is extending to you that grace you don't deserve = good.
Saying you don't deserve her, she rejected you, and God is therefore withholding grace you don't deserve = bad.
Gary, I like how you put this. I'd never considered it in those terms "resigned himself to failure" I've heard that a lot and it has always frustrated me because I have decided I'm there/in it, obviously. But I do know that I'm a tough act to woo as well since I'm so rational. I really appreciate your explaination. (ahhhhh - light bulb) :) Thank you