The meaning of the song "Rooting for You" by London Grammar is a heartfelt expression of love, commitment and hope. The singer is scared of loneliness when they are alone with their loved one, but they are ultimately rooting for them and wishing their lives will turn out alright. The reference to 'winter breaking' symbolizes the difficult times that can be endured together. The chorus of the song emphasizes that despite their fears, the singer will stand by their partner and root for them.