YES! Please say no! I am a mature person, don’t worry about hurting my feelings. I hate when a shidduch is redt and instead of politely declining, the boy simply does not get back to the shadchan. Let me know what you are thinking, so that we could put this behind us and get on to the next one.
Suddenly everyone is so concerned about the other parties feelings. Believe me, you are doing me a greater favor by saying no than by shlepping this out forever.