The song "Stay" by The Kid LAROI and Justin Bieber is about a toxic relationship where the two individuals keep hurting each other but they can't seem to let go of each other. The chorus of the song repeats the idea that the protagonist does the same thing he promised he wouldn't by letting his partner down, but he needs her to stay because he cannot find anyone else as good as her.

Verse 1 talks about the protagonist's addiction to alcohol and his realization that he has wasted a lot of time. He feels like his partner cannot understand or empathize with him, and he needs her to be with him for support.

In Verse 2, Justin Bieber expresses how much he values his partner and how he believes in love because of her. He admits that it's hard for him to trust people, but he's afraid he will mess up this relationship. He acknowledges that his partner has been supportive of him and has never left him stranded. He urges his partner to stay because he cannot imagine life without her.

Overall, the song portrays a relationship where the two individuals keep hurting each other but they cannot seem to let go because they believe they cannot find anyone else as good as each other. The song emphasizes the importance of communication and accountability in relationships and the challenge of letting go of something familiar even when it's toxic.