Taylor Swift issues a brutal warning about a toxic ex in her new song “Patient Zero” — and fans think she’s referring to her former flame Joe Jonas. In the new track, which kicks off “The Life of a Showgirl: The Encore,” Swift sings about befriending her ex’s current girlfriend. She describes herself as “patient zero,” meaning that she was the first to experience the emotional damage caused by his love and manipulation. “If you wanna party with somebody who might know / About the devil on his shoulder under his halo / When the toxins take their hold, you’d rather die than let it go / But if you’re sick of him, I got you, I was patient…









