Because he was right.
Not a revenge blog post dripping with rage — a calm, meticulously sourced exposé. I published it on a Medium account under a pseudonym. It was titled: “The Lover Who Stayed Too Long: A Pattern of Emotional Predation.”
It looks like you're referencing a title that may be incomplete or slightly mistranscribed. I believe you might be referring to a work by the manga creator — possibly something like "My Ex-Boyfriend (Who I Hate) Makes Me..." or a similar dramatic romance title.