What are the chances that guy will change his mind after rejecting someone?

So usually I go to office in plain tshirt and pants, but since I've heard that his type is girly, I've changed my style into dress and heels also put on some light make up.

Before the changes, he rejected me and asked to remain friends. To be honest, I kinda hope he will see me in different light and maybe think of me differently.
What are the chances that guy will change his mind after rejecting someone?
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