I think some people view acquaintances as friends. I don't see an acquaintance as a true friend. There are a number of people that I'll see in passing, or at some type of event or gathering. I'm friendly with those people. I know basic stuff about them. But I wouldn't consider them friends. They are people that I don't see outside of those normal meetings. Like a classmate. A classmate that you only see in class, no matter how friendly you are with that person, isn't a true friend. When that class is over you probably won't see them at all. I've been out of highschool for about 10 years. Out of all the people that I knew and was cool with I only keep in touch with about 10 of them. All the rest weren't true friends. They were people that I hung with because we went to the same school.
The only women that I've seen outside of the normal meetings are women that I was involved with. Sorry, but I don't just hang out with chicks like that. They aren't true friends. I have a lot of women that I'm friendly with, and who I would consider an acquaintance. Like one of my neighbors. I'm friendly with her. But if she moved away I'd probably never see her again. There was a co-worker that I was friendly with. But I haven't spoken to her since the job ended. I bet they viewed me as a friend, because I was friendly with them. But they weren't true friends. If they were I'd still be in contact with them.
Most of the women that men keep in contact with are women that they are trying to bang. When a woman is more than an acquaintance to a man, chances are he's trying to get lucky, and she's not a true friend to him, even though she may view him as a true friend.