• Portuguese Translation
• Spanish Translation

Taylor told NPR in 2012:

The idea was based on this experience I had with someone who was kind of this unreliable guy. You never know when he’s going to leave, you never know when he’s going to come back, but he always does come back. My visual for this song is, there’s a guy on his knees sitting on the ground outside of a door. And on the other side of the door is his girlfriend, who he keeps on leaving — and he keeps coming back to her, but then he leaves again. He’s saying, ‘This is the last time I’m going to do this to you.’ And she’s saying, ‘This is the last time I’m asking you this: Don’t do this again.’ And she’s wondering whether to let him in, and he just wants her to give him another chance, but she doesn’t know if he’s going to break her heart again. It’s a really fragile emotion you’re dealing with when you want to love someone, but you don’t know if it’s smart to.

According to Gary Lightbody in 2018:

It was so fast. She works really fast. She’s extraordinary. We actually did that song, wrote it and recorded it in a day. And that was the version of it on the record, which is very rare. Normally you write and record something with somebody and then down the line they’ll record it, if you’re lucky. With her, the whole thing was done in nine hours. I hope we can do it again sometime!