By popular request (OK, a couple of readers), here is my advice regarding using email and/or the Internet to be intentionally unattractive. I'm sure this would work with texting and the phone as well, but since I'm not a big text or phone person, so I rely on email and Facebook.
1) If someone says something like, "Kathleen, I'd love to hear what you're listening to right now," that's in the realm of normal. If someone says, "I'd love to be deluged with all that is Kathleen" after all kinds of semi-inappropriate stuff, that's moving into weirdness. So I go way, way beyond. Yes, their inbox gets completely flooded. With Every Single Music Or Literature Recommendation I've Made For the Last Three Years.
Paul says he doesn't understand what that accomplishes. It succeeds in being overwhelming -- and makes the guy question my sanity/intelligence. Which leads to No. 2 ...
2) You want to appear At Least a Little Bit Crazy And Not in a Fun Way. Men hate that. The problem, of course, is that although I have my moments, I'm generally rational. I'm not opposed to doing a bit of acting, however. I guess this is my passive-aggressiveness. I know how to ick-out men with something cringe-inducing. And I don't mind going there, if the net effect is I'm going to scare them off. When I get old flames writing me and acting pathetic, I'll share my blog because it's where I let my little bit of Crazy And Not in a Fun Way out.
3) One thing men do is romanticize women, particularly if they don't know them that well. I had one guy, who doesn't know me well at all, send mash email notes about how unusually deep and intelligent I am. That, of course, was my cue to be really shallow and silly in my communication with him.
I don't hear from him any more.
I don't mean to give the impression I have all that many inappropriate things happen anymore; but when they do, I know how to nip them in the bud.