The lyrics depict a cycle of being mistreated by someone the singer loves, but who doesn't love them back. The singer establishes new rules to protect themselves, such as not picking up the phone when the person calls, not letting them in, and not being their friend in order to move on.

Meaning of "New Rules X Are You That Somebody?" by Pentatonix

The lyrics of "New Rules X Are You That Somebody?" by Pentatonix explore the pain and complexity of unrequited love and the struggles of trying to break free from a toxic relationship. The singer is caught in a repetitive pattern of being mistreated and let down by someone they care deeply for. The rules serve as a form of self-preservation and an attempt to break free from the emotional turmoil caused by this person's presence in their life. Despite knowing that the relationship is unhealthy, the singer struggles to fully detach themselves emotionally and physically. The repeated emphasis on setting boundaries and the struggle to adhere to these rules highlights the internal conflict between wanting to let go and the strong emotional attachment that persists. Ultimately, the lyrics capture the conflicting emotions of love, longing, and the need for self-care in the face of a toxic relationship.