"One of my remaining virtues," Kylo replies smoothly. Through the processing of the helmet, it's difficult to say if the rejoinder was intended to be humourous— and the expressionless face of his mask provides nothing in the way of evidence either way.
But if what Ronan wants is for his masked visitor to keep his distance, he gets his wish. Kylo intrudes no further, apparently content to observe him from the half-shadow for now.

He's here for the merchandise, yes. But also the play.