This cold apartment with fairy lights and haggard tinsel Draped from the windowsill reminds me I was alone last year in our home You left a note; a cruel reminder You said we'd never even make it to New Years I spent summer praying that you'd return my calls And now that you're back I can't believe my luck but How do I know that you won't leave again And how do I know that you won't break my heart on Christmas I'll be alone on Christmas Not for the first time I don't need a lot, I told Mariah all I wanted for Christmas was my confidence I'm sorry that I haven't been myself this year It takes a lot to pick yourself up When someone you love walks out in the middle of the night What changed you? And what made you give this another shot I'm just anxious and I hate to nag but it's playing on my mind like How do I know that you won't leave again And how do I know that you won't break my heart on Christmas I'll be alone on Christmas Not for the first time How do I know that you won't leave again And how do I know that you won't break my heart on Christmas I'll be alone on Christmas Not for the first time How do I know that you won't leave again And how do I know that you won't break my heart on Christmas I'll be alone on Christmas Not for the first time You're gonna break my heart on Christmas I'll be alone on Christmas I'm gonna cry on Christmas Not for the first time