At first, he tried to play it off in order to avoid discussing the topic. But, a few other customers were actually there, saw what happened, and sided with Katie and called him a jerk, too.
So now, he is not sure if being kind of hostile to Katie and forcing her to leave was the wrong way to handle the situation or if he had a right to kick her out.
Why do you think Katie wanted to talk to him? Do you believe that he had a right to kick Katie out, or was he too harsh? If you were in his shoes, what would you have done?
You can read the original post on Reddit here.