Yes, I find myself getting much more unwanted male attention than I would like. (Not saying I'm so hot every guy wants to do me, I am saying I get more attention that what I'd like.) Sometimes I guess it's just friendly and it's fine, somewhat flattering, but that doesn't mean I am interested, nor do I have to be.
I hate that when I'm assertive about not being interested, I either get laughed at, ridiculed or insulted by these men.
This, in turn, has made me wary of approaching women, because I know what it feels like to get unwanted attention and the last thing I want to do is to creep women out. So I understand your friend who feels "weird around women", +Melanie McRae
On the one hand, though, we should be empowered enough to be able to say no and not think about being called a bitch or having a guy tell you something along the lines of "i know what you want, you're not gay, you need a real man like me". I SHOULD be able to just let it slip but hey, sometimes, I like to get respect. I don't know.
I know MANY genuinely respectful and honest guys who don't approach women this way, but the ones who do make us just keep our guard up 100% of the time, while men do not need that kind of a guard. Basically, they ruin it for everyone else.