The song "Miss You" by Gabrielle Aplin is about a relationship that has ended, but both parties still have feelings for each other. The lyrics suggest that the narrator is living her life independently and doesn't need to know what the other person is doing. However, she still wonders why they wasted so much time. The chorus reflects on the longing and missing that both individuals feel for each other. Despite trying to convince themselves that they are better off alone, they still miss each other deeply. The repetition of the phrase "Oh God, I miss you too" expresses the overwhelming feeling of longing and the constant thoughts of the other person. The second verse reflects on the aftermath of their breakup. The narrator thought she was fine initially, but the days became long and lonely, causing her to realize how much she misses the other person. The bridge of the song introduces the idea of the narrator wanting the other person to not only be her best friend but also her last. She desires someone who can love her unconditionally and be there for her in both good and bad times. Overall, the song portrays the complexities of a relationship that has ended but the lingering feelings of love and longing that remain. Both individuals miss each other and are contemplating if they should reconcile and be there for each other again.