well, give the truth a shot. say thank you, i appreciate your interest, but i do not like you! and then illustrate the reasons: you're *beep*, you're annoying, you're phoney, shallow and vapid, o...

but what if she's great? just not exactly the person you expected to feel that way about you?

so i guess beggers CAN be choosers!

so, that also means that LOSERS, in fact, CAN be CHOOSERS as well

It usually never hurts to let the truth out. I say just tell them, as long as you can manage it in a nice way, because sometimes you might not want to alienate them.....