I’ve seen people talk about actors and artists that had a terrible time.
My own would be Anne Rice. She wrote Interview with the Vampire after her young daughter died of Leukemia. Then her husband suddenly died of a brain hemorrhage. I suspect her Christian, anti-fanfic phase was a result of mental illness and manipulation from the publishers, although I don’t think she ever apologized.
D.H Lawrence captured the essence of the human condition on his writing than anyone else ever did, in my opinion, but he didn’t write Lolita. He did write plenty of controversial books, often with graphic sexual content, though. Lady Chatterly’s Lover was banned in the past for that reason.