Yeah....it's just so him.. so his way to tell her that she's beautiful. And yeah... he choose to use that kind roundabout way to tell that, like before at his BRI after their wedding ceremony when he said that he saw a bride in her... But you know what boy, once in a while girls still want to hear compliment in straightforward way and in plain simple words... so we can feel your sincerity in your compliment without too much guessing what the meaning behind it...
But again..this is our Jonghyun that we are talking about