During Taylor Swift interview with Glamour magazine’s November issue, Taylor shushed the interviewer when asked about her ex, John Mayer’s feelings.

“I know it wasn’t good, so I don’t want to know,” she said. “I put a high priority on staying happy, and I know what I can’t handle.”

Swift also said it was “presumptuous” of Mayer to even assume “Dear John” was about him. “I never disclose who my songs are about,” she said.