Did I do something wrong?

Yesterday, I gave a guy a bear hug from behind.
He seemed a bit surprised and blurred out that the hug felt tight so playfully, I squeezed a bit and released him.
He went to the side a liltle bit and couldn't maintain eye contact with me after.

We always into physical touching each other and he only does this to me but I think I may have crossed the line.
Did I do something wrong?
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