If one is not interested, just clicking on "no" seems kind of cold to me. Messaging the person and telling them why it's "no" is equally insensitive. Any suggestions?

The only time the other person knows the "answer" is when you say yes.Otherwise whatever you click is annonymous .

Hi youngasyoufeel,

This link should answer your MM questions. The other member shouldn't receive a message that tells them you said no.

http://mingle2.com/mutual_match/faq

good luck in your search