What does it mean if a guy initiates a hug with a female friend and they've never hugged before?

Anonymous
To clarify, the guy is on the shy side and the hug was because he apologized for something that happened:) And the guy's not generally touchy, but he gave a real hug with both arms.
What does it mean if a guy initiates a hug with a female friend and they've never hugged before?
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