Most men talk to a woman with the idea that she is a potential mate and I might wanna date her eventually. Otherwise why would I take the time to talk to her? (yes this is a generalization, but it's amazing how often this is the case). Whereas women tend to just be interested in the person first and afterwards go..oh ok, he could be just what I need in a man. Ok. There are exceptions where attraction at first sight is very much true, but in general it seems to be that men approach women as relationship potential/fuck potential whereas women don't really think about it that consciously. It's not the first thing on our minds when we start talking to a person.
Well, I don't see the point in talking with a female, unless for the reasons of having a relationship. What's the point? Moreover, having a girl as your "friend" just complicates everything. There will always be some level of sexual tension in the relationship that I as an INTJ just don't want to deal with. And if you tell me there isn't any feelings there, then you're just denying yourself the truth.
Evolution (if you believe in it) has led us to interact with people of the opposite sex for really only one reason, which is sex. If you look at all the other species of animals in the world, you will find that male animals interact with mostly other males (like playful wrestling or something), while female animals interact with mostly other females and their children. The only time male and female come together is to mate.