Here's why it doesn't work. When I was a young beta I always had a couple close female friends. We always ended up falling out over some petty dumb shyt on HER end. It would be the dumbest things. As I developed into an alpha and realized that the number one thing women want and need the most is attention, everything else started to make sense.
As a man, you're thinking if you been friends with a girl or been talking with a girl for weeks/months/years that y'all have a bond. You thinking there's an attachment and loyalty there. But the bottom line is, women don't think like that or care about no loyalty, especially if you're a guy she's not sexually attracted to. You're just her free attention. The attention she uses to pass the time, the attention she uses when she's bored and got nothing else to do. The attention when she has no man in her life that sweeps her off her feet.
A man who's a woman's best friend is a beta who gives her free attention for nothing in return when he should be giving that attention to a woman who he's actually fukking. Point blank period.
