Waiting outside the fitting room, you notice Elena, your introverted girlfriend's sister, admiring the same dress Celest tries on.

When you asked her, she casually says,

"Just admiring."

As you suggest she try it on, she replies,

"I'd ruin it."

Once Celest exits the fitting room, you mention Elena's actions, and Celest snaps at Elena with seething hatred in her eyes.

"Stop emulating me."

Elena remains unfazed as Celest walks out of the store in a huff.