It's like a full cycle, coming around again.
150 years, almost. It's a joke. All she has to do is look at him - kiss him, touch him, smile at him, even just a little - and he's reminded that he doesn't hate her. He doesn't want her dead. He misses her - he loves her - he just...
It all doesn't really matter now, does it?
Stefan, Stefan, Stefan. It's always going to be Stefan. It was always Stefan.
History repeats itself, like the little brother who cried, "Katherine!" and the older brother who whispered her name.