"2 Years Apart" by Eddy Kim tells the story of a soldier who is in the military and has been away from his loved one for two years. He expresses his longing and desire to be with them during his breaks and after his discharge. The lyrics reflect his frustration and impatience with the situation, as he tries to convince his loved one to wait for him. He acknowledges that they have the freedom to date other people during his absence but assures them that he still loves them deeply. The song emphasizes the difficulty of being apart for such a long time and the hope that they will reunite and continue their relationship once he completes his military service.