Korean Gentleman?

So there I am on a Seoul subway train, a middle aged Korean couple in front of me standing and chatting away. A seat in front of them opens up, without asking or even looking at the woman the Korean man sits down and gets comfortable. The Korean lady looks at him and then lovingly adjusts hi hair with her fingers, a smile and laugh in her eyes, true love! 10 minutes or so pass then another seat opens up and the lady is able to sit beside her man.  Being a gentlman Korean style?