Why does my platonic male friend always talk about how hot other women are in front me?

This is just out of curiousity and something I really don't understand.

As a platonic friend, I also really don't care which female a guy thinks is hot or not. That's their thing. I also don't go around pointing out which guy I find attractive.

And I also don't want to be thought of as "one of the guys" because I'm a female. It's a part of human behavior that males do that puzzle me.
Why does my platonic male friend always talk about how hot other women are in front me?
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