Although they look with only a slight or sidelong glance, they still completely finish their task (of destroying the lover).

There is a delightful paradox here about the quiet yet devastating power of the beloved's gaze. They do not even grant a full or direct look—offering only a fleeting, seemingly indifferent glance—yet that bare minimum is enough to utterly undo the lover. It captures that sweet vulnerability of love, where even a lover's cold coyness can strike with deadly precision.