The more attention you give a woman, the less likely she is to give anything in return. But if you take that attention away you end up just watching her talk to everyone else but you.
It this something that happened to you?
Yes. I tried to give a girl attention and she treated me terrible, then when I stopped, she started talking to my best friend.
It sounds like you had a pretty bad situation happen to you and for that I'm sorry. But that's not an excuse to make a generalized statement about women like that. One experience shouldn't determine how you feel about everyone in a group of people.