She's mad at him

"Can't you think of anything but sex?!" Jessie asked. Nick winced.

"Are you still mad about that?" he groaned. "I just looked at her a little, it didn't mean anything."

"Just looked down her shirt a little is more like!"

"You're much prettier than she was." he tried to calm her down, but it didn't work.

"And don't think I didn't notice her hand on your arm!" Jessie got off the bed, and dodged his hand. "I'm going to introduce myself to the neighbors. You stay here and finish unpacking." She stormed off.