If you find the exact series, reply with a screenshot or description — I can help you locate the most recent updates.
The biggest twist in the latest update is a scene where Sori looks in the mirror and doesn't recognize her own face. She realizes she has changed her hair, her clothes, and even her speech patterns to match whatever Dohyun wanted that week. The manhwa asks a heavy question: If you lose yourself to be loved, who is actually being loved?