Why did he watch same adult movie that I watched?

I like this guy and he got to know I watched a movie which has dirty scenes in it. Then He watched this movie too and today i asked him what he is doing and he told me he watched this movie. This movie is not newly released. He is kind of person who rarely shares his interest with me. Then why all of sudden he is watching the movie i watched And told me about it. Does he want to see my reaction?

Why did he watch same adult movie that I watched?
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