Why would a man want to be insulted by girls?

Why would a man want to be insulted by girls?
When I was in college, an old man about 60 years old we met with him on internet was paying me and my housemate to spit and curse at him. He would come to us every weekend for this. He would kneel down and we would spit and curse at him. We accepted this because we needed money at that time, but we never understand why he could want to do this?
Why would a man want to be insulted by girls?
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