This is exactly what Himchan didn't want, what he was trying to prevent. Himchan was bad. He knew he was bad, because he'd been told that before, on more than one occasion. His love wasn't good and he knew it. His love was spoiled. He certainly wasn't good enough for someone as wholesome and kind as Yongguk, that was apparent to Himchan. Himchan was broken, Yongguk was strong. Himchan was so disgustingly, unpardonably filthy, tainted, and Yongguk was pure and good. He didn't deserve to love

Wufan has this fascination with thunder and lightning that rages outside him and Yixing's window in the form of a storm. He finds the raw power behind the storm alluring and he can't help but watch, enthralled.