I am confidant, make good eye contact, and am a good natural conversationalist but I keep getting rejected by girls?

I have decided to approach girls. I approach, tell them the line of "I know this is random but I think you are really cute." then I talk to them for a bit and make good conversation [not shy at all] and still get rejected by every girl. What is going on. I thought if you were socially confident and a bit funny and make a connection, then you get the girl. What am I doing wrong?

I am confidant, make good eye contact, and am a good natural conversationalist but I keep getting rejected by girls?
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