Maybe Ye Shaoguang was too bored. He was bored to the point where he started looking for things to do.
After sitting for some time, Ye Shaoguang got up and went for a shower in the bathroom. He did not put on any clothes as he left the showers. When he got into bed, he stripped Ji Mianmian's clothes off her body.
He was exhausted. Thus, he might as well provide some solace for himself.
Ji Mianmian's body was soft, just like her personality, a softie. When she was unconscious, she seemed cute to him. At least he did not have to face her constant provocation.
Ye Shaoguang had difficulty falling asleep after laying down. Exhausted in the middle of the night and holding onto a soft body, it was impossible to not have any reaction. However, he did not carry out any extra movements. Instead, this type of natural reaction and urge made Ye Shaoguang comfortable.