If a guy doesn't make a move in 4 years does that mean he's not into me?

My cousin thinks this guy she talks is into but he has never asked out anything more than as a friend and hasn't made any moves on her. How can I help my cousin who is 43 to stop wasting her time so she can move on and get someone that us actually into her

If a guy doesn't make a move in 4 years does that mean he's not into me?
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