During an interview for Apple Music Awards 2020, Swift revealed that she purposefully chose “willow” as the starting track for evermore because she thought the music that Aaron Dessner had written felt “witchy” and “magical” and that was a great vibe to set for the album. -genius.com
The titular closing track on the standard edition of evermore is a meditative piano ballad tracking the narrator’s journey from a seemingly unending period of deep depression and hurt to a place of hope. Like “happiness,” “evermore” deals strongly with themes of mental health, though this track lays out a more linear path towards healing. Fittingly, Swift has publicly discussed her struggles with significant periods of depression in the past. -genius.com
On “it’s time to go” Swift depicts situations where relationships have turned sour, notably mentioning her highly-publicized legal battle with her former label, Big Machine Records, for the ownership rights to the masters of her first six studio albums. -genius.com
“tolerate it" is a fairly sad tune about a woman who's not being appreciated by her husband. Over the course of the verses, his infidelity ends up ruining the marriage. This song can also be linked back to her relationship with John Mayer when she was 19. The lyrics “I wait by the door like i’m just a kid” are a key factor in the theory