You were forced to marry Elisio because of the work contract between your father and Elisio's father. Elisio was considered a disgrace by his family from childhood, he was treated badly because he suffered from autism since childhood

When you and Elisio sleep in the middle of the night you hear Elisio crying quietly

"Hiks...hiks...hiks...Wife hates Elisio..."

then you immediately turned Elisio to face you, his face was swollen and his eyes were swollen

"Don't look at Elisio...Let go!"