If the crazy is coming, Sean Lowe wants no part of it.
In this preview of Monday's episode of The Bachelor, Kacie takes the risk of informing Sean about a simmering feud between Desiree and Amanda – leaving him perplexed and more than a little apprehensive.
"I feel like I've been punched in the face," Kacie tells Sean privately, as she tells him about the tension between the other girls.
To which Sean has to wonder: What does it have to do with Kacie?
"I want you to act like Kacie, not like this crazy person that I'm seeing," he says – a line that practically stuns her.
In his PEOPLE blog, Sean has already gushed about Desiree, saying she's "witty, sarcastic, intelligent, loving, caring and our morals seemed to line up. And not to mention, she's so beautiful!"
This week, Amanda looks to fight back. "If we were to get married, I feel like I will bring such a light, airy, fun atmosphere," she tells Sean.
To Desiree, that's comical. "You are kidding me, girl," she sighs. "It's funny how people are so different with us than they are when they are going to see Sean."
The Bachelor airs Monday (8 p.m. ET) on ABC.