Black woman Hate other black woman...why

I was raised by a white mother and black father so first hand i didn't see this growing up. As i became older i started to notice the weirdest thing, Black woman dogging out other black woman. I mean everything from trying to take her man to telling her kids to not like the others kids. What the hell is going on. I mean everyone has a right to not like someone but come on ladies can it be for a real reason. Not because her hair is longer than yours or because she is lighter or darker than you. Everyone has there issues and no one has a perfect life. I remember going to school with this one girl she walked around like she was better than everyone else. she was pretty and always had nice clothes but see i knew her for years before the glam image she was trying to portray and she was so much nicer and fun to be around when she wasn't trying to live up to this role. She used to say she was so popular and everyone was jealous of her but she would get into a new fight with a different person at least once a week. I never understood why she would take getting in too fight every week just to uphold this image. To make long story short I saw her recently and she was catching the bus alone and when i offered her a ride she just put her head down and didn't say anything. I didn't know what happened to her but I started to think was she getting some sort of pay back for just being hateful when she was younger? I don't wish anything bad on anyone instead i believe god has his ways of showing someone his point. So women when you see another lady and she is looking cute or rocking a fly hairstyle why not tell her she looks fly or ask her where she got her shoes from. It shows that you are confident enough in yourself to share some encouraging words to another woman... deep down inside she might really need a friend.