It seems as if there are so many things that get in the way with a guy/girl friendship. People believe that once you get too comfortable around some, you start to have feelings for them and eventually it will be developed into something more and that is why guy/girl friendships never work out.
This plot goes the same for many dramas (especially Korean dramas), where two people can start off as just friends but as time passes by and the two start to hang out more often. It will eventually develop into a beautiful relationship.
The other scenario in a guy/girl friendship is where one amongst the two will start to fall for the other. Only to be in the friend zone at the very end. It seems that everyone believes that there can never be a mutual platonic feeling towards each other.
But I believe it is possible, to have someone of the opposite sex look out for you and be there for you without any emotions intertwined within. As a girl, sometimes I just need advice from a guy to help me clear my mind. I am close friends with a guy (and before anyone thinks "Oh she might be clueless that he has feelings for her", let me assure you that he doesn't, we've talked about this for 100 times). I don't have any feelings for him and he doesn't have feelings for me as well but our friendship has given me so much more than I had expected, of course, we will still be misunderstood by our other friends but who cares? We enjoy each others' company and are comfortable with each other. He's been there to see my worst and I have seen his worst as well. Late night talks, karaoke sessions, movie nights, we've done them all.
From a girl's perspective, I believe that guys are more carefree, for instance, if I wanted to hang out with my friend mentioned above, he will be ready within 10 minutes.
It may be hard to be in a guy/girl friendship but once you sort out the differences and talk things through. Everything will develop into the best friendship you never knew you could experience.