Ohh.. i read this novel "After the Stand-in Shou Faked His Death"
Spoiler...
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He Yang has psychological issue where he cant express his feeling.
He Yang never like Shen Xiu zhu romantically.. i remember He Yang said that he never look nor contact Shen Xiu Zhu during those years abroad.. He was taking care of Shen cause his elders always told him to repay the favor of saving his life.
The Substitute Relationship