Thanks to everyone who replied! I've received some good advice.

Salukigirl- yes, it's very flattering when guys flirt w/ me; not so flattering when it's unwanted. If it were one or two married men, I wouldn't have a problem with it, but I'm obviously portraying myself as someone I'm not.
Vickie- good observation about cocktail waitresses. I would never be able to handle a job like that b/c I'm not adept at manipulating men, which that job is all about. They have to be seductive in order to get good tips, but know how to be tough & draw the boundaries when the men get drunk or inappropriate. The book suggestion was a great idea. I read a lot, too, but never thought about reading a book about how to deal w/ men at work which would give good advice for dealing w/ them in general. I didn't even know there were such books on the matter! Thanks!
Bill3-Thanks for the news quote! I knew that about men; just don't understand it. Guess I needed to see it in writing. Still, other women seem to know how to handle this, b/c they haven't been thru what I have, & I don't have the experience they do.(Not b/c of my age but b/c I've isolated myself so much.)
It was nice to get a guy's input on this!
Pomeganate-Interesting that you used the word "predator", b/c I feel like I'm prey to them, & altho I didn't feel the need to include this before, I was raped, & stalked by a few guys. I feel like I just attract creeps like this, which is another reason why I posted this thread. I know people are going to tell me not to blame myself, that there is no excuse for a man doing that- which is true, but if it keeps happening...I haven't dated in 5 years b/c I've had so many horrible experiences which I know I must have brought on myself due to my total lack of boundaries, being too nice, then being too b****y when it gets out of hand & then the guys get pissed off & do sick things such as break into my car, etc. SO IT REALLY IS ME! You're right, I do need to learn how to be a b**** at the right time & stop them before they start. Thanks!

Whew!