Lita had sabotaged herself in front of her nemesis, cutting herself off at the knees by alluding to the Annihilator and fully expected Pete to exploit her mistake. It's probably what she would have done if their positions were reversed. It's what he should do. The only thing worse would be if he coddled her. There was no way Lita would be able to stand being babied or placated, in general of course, but especially by Pete. Lita had encountered many nosy hospital inhabitants offering their unwanted sympathies and even though she knew they meant well, she had hated every well-intended word. If Pete would go on that track she might literally scream.
Instead, Pete surprises her with being the exact sort of guy she knows him to be and it's probably the most perfect way he could respond to her unexpected blunder. Instead of trying to comfort her, he lobs back a stupid, egotistical remark and Lita could kiss him for it. It's exactly what she needs to steady her shaking equilibrium. She rolls her eyes but her grin is wide.
"It's either that," Lita replies, shaking her head but smiling. "...or your shirt is so hideous I'm afraid I'll go cross-eyed if I look at it too long."
She will never admit it, but Lita is thankful for Pete's irreverence. With so much of her life up in the air, Lita was struggling to find her footing lately. Even though it was something small, being able to count on Pete to be the sort of jerk she expected him to be was a blessing. Lita knew it probably said a lot about her that she found comfort in Pete's dickishness but she wasn't going to harp on it.
"Also, men's shirts come in sizes other than extra small, just as an FYI. If you sneeze, a button is going to end up popping off and shooting someone's eye out. It'll be like "A Christmas Story", only more douchey. And with my luck, I'll be the doctor to treat the injured eyeball. So have a little consideration, Pete."