Demi Lovato has returned with new music coupled with what appears to be a heartbreaking announcement. In her surprise new single, “Sober,” Lovato seems to say she has relapsed after six years of sobriety. She sings in the ballad’s confessional hook, “Momma I’m so sorry I’m not sober anymore / And Daddy please forgive me for the drinks spilled on the floor / To the ones who never left me, we’ve been down this road before / I’m…