Is he justifying his actions or just projecting his own emotions?

My sister has this male friend that likes picking on her. One night they went to a restaurant and the manager of the restaurant happened to be her male friend’s friend. The restaurant manager was playfully picking on her that night and he joined him in picking on her and I was a little annoyed seeing them pick on my sister but she was calm about it. 3 days later my sister and her male friend were having a discussion and she mentioned that I didn’t like the way his friend was picking on my sister. He then said his friend’s teasing showed that he liked my sister. While my male friend also picked on her earlier on that night before having the discussion and he also joined in on the teasing the night we hung out at the restaurant.

Is he justifying his actions or just projecting his own emotions?
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