As Heather stopped and turned to speak to him, Kylo turned as well so he was listening with maximum effort and openness. He stood quiet, as he always did, nodding subtly in understanding or agreement with her statements. Then, when she was done, he turned and resumed walking several paces before pausing and looking back for her.
"I would never not find you," he said in a surprisingly caring tone for that deep timbre he spoke in. It rumbled like thunder, like that laugh.
"I have destroyed planets for less. I would destroy galaxies for you."
And he turned to continue their exploration, one hand holding itself out to the side for her to hurry up and take.