I think one of the most frustrating (but amusing) parts about writing kylux, especially in canon verse, is when you finally get them pinned into a situation where they have to use their words and express emotions like regular human beings, but they still fight it so hard. It’s like trying to spoon feed a child that absolutely does not want to eat. They just close their mouths and keep moving their heads away from the spoonful of emotional intimacy while making unhappy whining noises until they finally get snippy enough to open up so they can retort and you just have to shove it in there before they realize their mistake and clam up again
So much this.