I don't say KK was insecure... But he was definitely jealous... And sometimes it happens... It's ok to be jealous but him snapping at her was wrong. These are the kind of things one has to delicately deal with each other in a relationship. If he keeps on pouncing her for all such smallest things, the credibility in their relationship will be last... That too ..they are still in the first phase of relationship. KK being well experienced must know... To handle these silly things...