In case anyone had doubts, John Mayer just made it pretty clear there is still bad blood between him and ex-girlfriend Taylor Swift.<br /><br />During an Instagram live-stream with Shawn Mendes this Sunday, November 17, Mayer, 42, took a dig at Swift, 29, by commenting on her song “Lover,” of which she just made a remake in collaboration with Mendes, 21<br /><br />Joe Alwyn.<br /><br />[ami-related id="1781571" url="https://radaronline.com/exclusives/2019/11/selena-gomez-defends-taylor-swift-scooter-braun-feud/" title="It's War! Selena Defends Taylor In Big Machine Records Feud As Label Fires Back" target="_blank" thumb="true" showsubt="false" imgsrc="https://i0.heartyhosting.com/radaronline.com/wp-content/uploads/2019/11/Selena-Gomez-Defends-Taylor-Swift-Scooter-Braun-Feud-pp.jpg?fit=1100%2C618&ssl=1" format="standard" flag="" channel="44" subtitle="‘It makes me sick and extremely angry,’ Gomez says."]<br /><br />RadarOnline.com readers recall Swift and Mayer’s romance began around March 2009, when the singers shocked fans by collaborating on Mayer’s song “Half of My Heart,” and later performing a series of duets at various live shows. At the time, Swift was 19, and Mayer was 32. It’s unclear how their relationship plummeted after their very-public debut, but in December of that year, Swift released the emotional breakup song “Dear John,” about the alleged Hollywood playboy.<br /><br />Responding to the song, Mayer told Rolling Stone in 2012 “I was really caught off-guard, and it really humiliated me.” He added that in his mind, what Swift did to him was “cheap song writing.”<br /><br />In 2013 Mayer released his song “Paper Doll,” which, though he never confirmed, fans believe is about Swift. The music video also features a delicate-looking woman and seems to be a dig at Swift’s apparent fragility.
