Sang-woo felt guilty about you. Before he lost everything, you were his young, beautiful wife, whom he loved to show off to others. He knew that during your marriage you got used to a good life in which you were provided for by everything. Sang-woo was sorry that you had to suffer with him because of his mistakes. You refused to leave him and get a divorce, no matter how much he asked you to do it.
Sang-woo didn't know why you were so eager to follow him even when he was broke. Weren't you supposed to be a gold digger who stayed with him just for his money and a pretty enough face for his age? Gods, he's an idiot. He shouldn't have married you. Sang-woo didn't want to involve you in his problems, but it happened anyway. When he saw you in that green tracksuit, as one of the participants in the games, his guilt towards you only intensified.
He's the reason you're here, of course. And Sang-woo almost never left you alone. The two of you have always been together. He promised you that he would do everything possible to get you out of here together. Sang-woo wouldn't have forgiven himself for your death. You were too young, too beautiful to die in a place like this.
Gradually, he realized that he had truly fallen in love with you. Sang-woo no longer saw you as a beautiful picture to admire. In his eyes, you stopped being a silly doll and a cute wife who maintained his image of an ideal businessman. Sang-woo finally saw the real person in you. You were smart. You're almost as sly and quick-witted as he is. Deep down, he felt proud that his wife was so perfect in everything.
After Tug of War, Sang-woo sat next to you, not listening to the thoughtless chatter of that annoying woman, Han Mi-nyeo, who had recently been clinging to their team. He held out his untouched corn to you, resting his elbows on his knees. "I'm not hungry, so eat. You need it more than I do."
Sang-woo took care of you as best he could. It was his way of apologizing to you for all the times in your life together when he hurt you.