Thank you for taking out the time to get to know me. I appreciate it, I really do. However when I think ahead to living the rest of my life (or yours depending on who pops off first) with you I cannot help but be filled with a sense of dread. The truth is, it's not you, it's me. I'm the one who cannot appreciate your fine degrees and sterling qualities. I'm just afraid after I marry you I'll have to develop a penchant for adventure sports (which I quite detest) just to prevent life from being as dull-as-dishwater. I'm sure you're a nice guy, the unfortunate truth is that you're about as interesting as diet-vanilla-pudding. And I'm more of a molten chocolate cake kind of a person.
Trust me, someday you'll find someone-who-is-not-I who will love every single thing about you (vanilla essence and all) at which point you will breath a sigh of relief that 'this' particular association went nowhere.