Lois definitely felt it. Maybe wanting to be closer this way hadn't been the right move. She hadn't realized she would have this kind of affect on him, and so quickly. And she wasn't sure they should move this quickly.
She wasn't quite blushing but was very aware of the situation as she looked into his eyes. "I didn't realize I would make this so difficult for you," she said carefully, kissing his forehead softly in apology. "I can go back to my own chair..."