when a girl meets a new guy, she very quickly, very firmly, and unchangeably decides whether or not she's going to be willing to have sex with him in the first minute or so of meeting him
something you're doing in the first few seconds of meeting a girl is making the girl put you into the category of "guys i'm never going to sleep with in a million years", the problem you're having is that girls feel the need to have male friends, and something you're doing is making each girl still want to be talking to you after she decides she's never going to sleep with you, so trying to "get to know" a girl before deciding whether or not you're going to sleep with her isn't going to work becuase if you wait too long to start trying to get into her pants, she's gonna be confused, she's gonna be like "why didn't he try to fuck me the day he met me?" if you wait too long to tell her she's pretty, then telling her she's pretty will actually make her feel ugly because she'll wonder why you didn't tell her how pretty she was the first day you met her
i'll explain better tommorrow