The majority of the “Vigilante Sh-t” lyrics involve generalizations about karma and seeking revenge, but there are two verses fans have latched onto as evidence. First, when Taylor sings, “She needed cold hard proof, so I gave her some / She had the envelope, where you think she got it from? Now she gets the house, gets the kids, gets the pride / Picture me thick as thieves with your ex-wife / And she looks so pretty / Drivin’ in your Benz.”

Source: https://www.distractify.com/p/who-is-vigilante-shit-about-taylor-swift