After Taylor Swift released The Life of a Showgirl, her fans immediately began theorizing that "Ruin the Friendship" is about her late friend Jeff Lang - and now his mom has weighed in on the speculation too. In a recent interview with The Tennessean, Susan Lang said the song brought back happy memories when she heard it and made her wish she could contact Swift, 35, to thank her. "After all this time, she hasn't forgotten about him," Susan added. "She's keeping his name alive.