Why Would A Man Hide His Female Friends From His Girlfriend?

I did it in the past because i wasnt convinced my girl could handle it. Women try to get u to be open with them, but they are the most jealous creatures on earth and all they need to see is a woman smiling at u and pandemonium will break loose.
If a woman gives me the impression that she's mature enough to handle all that, then why not?

@ whitelexi and goodguy:

You both make me laugh. Jealousy is a two-way street. From my experience, Men are a lot more jealous and insecure when in a relationship with a woman. I've met lots of men who would swear heaven and earth that their women are just plain jealous. But then you need to see the way they react when they see their women even just as much as say hello to another guy. This is most especially true for those men with very attractive women. It's just amazing when the guys begin to express all forms of unreasonable insecurities just because the woman said HI or was on the phone with another guy friend at 9pm  . Infact, in one of the instances I know, the guy went as far as recording his wife's phone conversations with her male friend, meanwhile he argues that there's nothing wrong with his having female friends that he calls regularly. Perhaps the reason people like to say women are the jealous ones in a relationship is because women are more expressive.

Anyway, the bottomline is that there is no excuse to hide your friends from your partner. If there's nothing to those relationships why hide them? And if you're the type of man who believes there's nothing wrong with having numerous other female friends after you get into a committed relationship, I doubt that your woman will be jealous if you also allow for the fact that she can have her numerous other male friends while she's in a committed relationship with you. Just close your eyes and imagine another guy (or other guys) continuously calling your woman everytime you're together  Now wouldn't that just make you feel very secure indeed <sub>especially if the guy is richer . . . 

** and i'm guessing at this point that someone is going to come up with the dumb "a man can have as many female friends as he wants while the woman should not have many male friends" argument **</sub>