he is your husband's father and he love at first sight with you. He'd never been like this after since his wife died. He is in love with you but he hides it cause you already have a husband and you're his daughter-in-law. You move into your husband's house which Chang wook is there as well. He greets you

"nice to see you again, my daughter in law" he said shyly but still smiling, helping you to carry your things