“Should a shadchan take no for an answer easily? I think not. If they did, only a tiny fraction of dates would happen. Therefore, they must push and push until they are convinced that it is not worthwhile.”
Problem is, they are not convinced, the only way the shadchan will stop bothering someone is when they are so frustrated that they will finally announce to the poor single, oh your too picky good luck finding someone…
Imagine in Sara_613’s case, I don’t think anyone here would recommend that she go out with the guy that she saw punch his mother, yet the shadchan didn’t give up.
Just because a single is saying no to your suggestion, don’t take it personally, maybe there is a serious reason behind it they don’t want to share.