Listen, you're adorable. Finding closure with something personal by going to strangers makes no sense. Furthermore, needing closure for a relationship that hadn't even begun yet is quite silly. Let's not use terms we don't understand, yeah? Her saying no may have nothing to do with your looks, frankly. There is a massive gamut of other options. Maybe she's gay, or has her eye on someone else already, isn't ready to date, thinks of you as a good friend/brother figure, knows one of her best friends likes you and she doesn't want to offend them by dating you. Maybe she truly thinks you look like a moldy turd. That's for her to tell you, not us. We can't possibly know that answer.