He respects her feelings enough to know that kissing her like that, like a thirsty man finding water in the desert, so passionate yet so gentle...that kiss means something.
Because it is him and because of her feelings.
Katarina knows that even after he had chosen Sofia, he had never fallen out in love with her. But that is what makes it so hard for her to forget him
Because he is doing things like this. It is like he could not help it and she also could not help it.
He loves her but can't be with her.
But he still wants to protects her.
That is why he sent his secretary to look after her. This secretary is of course Sasha. She is the only person in Pandemonium that is recognized as such.
When he could not see her, could not protect her the way he did before, he sent Sasha to look after her.
But knowing this Katarina felt a bit angry.