"I did a good deed for her. You know nothing." Hans doesn't have any good defenses. Such deception is clearly not a good deed, what was Hans doing actually?
"If you really like her, then why did you leave with a bad excuse?"
"If you think like that it means your information is incomplete." Hans taunts the man. David wouldn't call it a bad excuse if he'd known the truth behind. Unfortunately, only Hans and I knew about that.
"What are you going to do after this, Hans?" The devil also happens to want to know the real reason Hans resigned while announcing a fake marriage.
What's the advantage of all that? Why Hans need to be arrange a fake marriage to decieving Jessica. The consequences would be badly if Jessica found out about this.
David and Hans have a bad history. David was close enough to Jessica to steal her heart while Hans is just an observer. Everything changes when Jessica fails to live up to David's expectations.