Complex sentence: He takes her in to calm down, but leaves when she is confronted by Lauren.Kat and Alfie visit Luke, posing as Stacy's parents, to be told that she had left with Lily without saying goodbye.
Split into simpler sentences: He takes her in to calm down, but leaves when she is confronted by Lauren. A worried Kat and Alfie visit Luke, posing as Stacy's parents, to be told that she had left with Lily without saying goodbye.