In SBS Award night 30/12/2013, the man said: "Thank you Eun Sang for accepting me."
In video commentary interview 28/12/2013 (just released in DVD Director Cut), the woman said: "Now I accept you with a wide heart."
Is it enough of their confirmation about their secret relationship?
In my thought, they weren't for fan service when they said these meaningful words. The way they said publicly gave us either: 1) they're meant for us to understand their feeling for each other, 2) because they hardly have their own chance to see each other so that every chance they can, they're meant to each other at the most. I truly hope the second assumption.
Hope our dear couple have much time being together.