Then again, Yang admits that he likes it whenever she acts this way.
Whenever he talks to anyone about those two. Akito and his ex-wife.
Yang is painfully reminded of their first meeting; and how that casual act of kindness leads to changing their lives. Had he not called out to her then, for sure, things would have been different.
Akito, for one, would not have misunderstood anything, he wouldn't have made a mistake on the woman's feelings. Even now, whenever Yang thought about it, there is an incredible amount of pain in his chest. If he didn't say such words to prove Akito, then for sure, that ceremony would have ended with the two walking away hand in hand.
It wouldn't have ended up in such a tragedy.