I am severely worried about my guy friend's severe obsession with Taylor Swift and its ramifications on his mental health?

Basically, my guy friend seems to be completely enamored with Taylor Swift. He has all of these albums of hers, a calendar, he knows every song from the radio hits to the most obscure ones, and I saw his lock screen on his phone and it was of her and she was in some sultry outfit showing some major cleavage. I can t even begin to comprehend his issues and think I may need to call a professional and perhaps may need to have him admitted to an asylum. Your thoughts?
I am severely worried about my guy friend's severe obsession with Taylor Swift and its ramifications on his mental health?
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