The song "If It Ain't Me" by Justin Vasquez expresses the narrator's feelings towards a girl he had a romantic interest in. He sees her with her boyfriend and questions whether the boyfriend can love and treat her the same way he can. The narrator admits that if the boyfriend can make her happy, he will let her go, but he wants her to know that no one can love her like he can. In the Tagalog part of the song, Justin Vasquez sings "Ako nalang mahalin mo," which translates to "Choose me to love." He emphasizes that there is nobody else who can love and care for her the way he can. He promises to give her everything and all of himself. Overall, the song delves into the narrator's feelings of longing and desire for the girl, hoping that she finds happiness even if it's not with him. He acknowledges that he may not be the best for her, but he still wishes the best for her.