From the album BFF (After Remix)
This song describes a friendship that exists mostly in future tense and hypothetical spaces. The most concrete proof of their bond is a Sims 4 save file. Every promise points toward a someday meeting, not a right-now presence. It's devotion built on anticipation instead of actual time spent together.
Sometimes I see stars in your eyes / We go where we like / In our island paradise
That 'sometimes' does a lot of work. It admits the speaker doesn't actually know what's in the friend's eyes most of the time. The island paradise is a shared daydream, not a place they've been.
We're twin sisters for real / In my Sims 4 World
The simulation is offered as proof of authenticity. The most real version of this friendship is the one that exists in a video game. That's not metaphor. That's where they actually spend time together.
A future vacation / My new destination / I promise to meet you there
Every concrete plan is deferred. The vacation is future. The destination is new, meaning they haven't gone yet. The promise is to meet, not to stay. This friendship is always about to start.
Eternal love / It's us for life
The declarations get bigger as the song goes on, but the actual experiences don't. 'Eternal' and 'for life' are doing the emotional work that shared history would normally do. I'm not sure the narrator realizes how much weight those words are carrying.
This is what friendship feels like when it exists primarily online or across distance. You build a world together in your head and in games, and the promises get huge because the everyday proximity isn't there. The narrator believes every word, but the song accidentally reveals that the relationship lives more in anticipation than in actual presence.