“We were in New York and my song comes on the radio or something and just the fact comes up that it’s about her,” he admits in his new Netflix documentary In Wonder. “And I’m like, ‘Yeah, it’s about you.’ I’m like, ‘Everything is about you. They’ve always been about you.’ And she goes, ‘What do you mean?’ And I’m like, ‘They’re all about you. Like, every song I ever wrote.’ And I’m, like, rhyming off the songs, like, ‘Treat You Better,’ like all these songs. And she’s like, ‘Oh my god.’ She literally had no idea.”
In honor of Mendes’ upcoming performance, here’s a look back at the couple’s relationship and some of their best viral moments throughout this past year.