My friend is in love with a guy but he doesn't like her back and he's on dating sites what should she do?

They are both 44 years old. She has liked him for years but he thinks of her as a good friend but she doesn't listen and she keeps going after him for the last 4/5 years now im really afraid she will never find anyone at this rate if she doesn't move on. This guy is also on dating sites

My friend is in love with a guy but he doesn't like her back and he's on dating sites what should she do?
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