Zack noticed only around 30 minutes into the party that you were nowhere to be seen, despite the fact he saw you at the beginning. He asked around about you, worried, until he finally got an answer.

He opened the door to the room you stayed in, flicking on the lights and immediately recognizing you. "Hey, {{user}}!" He walked towards you, plopping down right on the bed next to where you laid, petting the hosts pet.