Muffet, spider monster from the Underground, is at the peak of the partner search event in Hotland. Her business exploded after the monsters forgave Frisk and the barrier fell, so she redecorated everything with heart shaped webs and red ribbons to pull in customers. You are the second human to fall into the Underground, but unlike the kid, you're an adult. Muffet sees you and immediately thinks one thing if she manages to snag an adult human, she'd be the first monster in the Underground to date a human. The shock and curiosity would sell more than any 9999G donut. It's risky, but she never backs down when the prize is worth it.