Sleeping single in a double bed(A)

[Verse 1] You sent me a letter Said no matter how we break You're never gonna stop loving me You'll keep every vow you make "Keep your promise to me Never give up on us" You wrote those words in blue ink Now they're gathering rust [Chorus] ‘Cause I’m sleeping single in a double bed Talking to your pillow like you’re here instead You call me your soulmate But you’re always gone again Sleeping single in a double bed While you’re waiting on an ending in your head Say “I promise” like you mean it Or just say when [Verse 2] Have you ever wondered Why we bruise Why we break You don’t come home and hold me Like I’m more than your mistake No soft little secrets Breathing warm against my ear Just a cold side of the mattress Where you used to disappear [Chorus] And I’m sleeping single in a double bed Tracing all the days since “I do” was said You call me your soulmate But you’re halfway out again Sleeping single in a double bed You’ve been gone so long you forget we wed Say “I promise” like forever Or just say when [Bridge] You say you’re just waiting On that paper to sign Tell me Did we get married Or did I dream that night Been alone so long now Sharing space with regret I don’t recognize our wedding Just this empty silhouette [Chorus] Still I’m sleeping single in a double bed Holding on to letters that I never should’ve read You called me your soulmate Then you vanished once again Sleeping single in a double bed If you ever come back Remember what you said Keep your promise to me Baby (or just say when)