Co-writer Alyssa Bonagura told The Boot
how her own new relationship helped inspire the song.
"We had this groove of writing pretty much every week — like, whenever we had a day free, we would write - so I walked into this writing session with a brand-new boyfriend and, like, new love and all this stuff. And I was so in love - and I'm still in love, really in love … and I walked into this room, and Brandon had this 'do do do do do' sound, like a circle, and Jeffrey yelled out 'Circles, right?' And I was like, 'Oh my god, yes,' and so we took it to the, you know, how everything is a circle, to the ring on your finger when you get married, to the beginning and the end of, like, 'where I end is where you begin' - that's a lyric in the song. And so it really was just a love story of completing the circle, you know?"