I"ve seen this subject come up many a times on this subreddit. I think there's a disconnect between the two sides. Personally the only girl friends I have at this point in my life are the SO's of my guy friends. I"ve dug up a couple of things that seem to say women and men usually can't be friends. I'm interested if anyone has anything that contradicts that.

http://www.youtube.com/watch?v=T_lh5fR4DMA

http://www.psychologytoday.com/blog/the-attraction-doctor/201304/can-men-and-women-be-just-friends