Shane knows there's something wrong, Levi's sure of it-- they simply know each other too well, have been attached at the hip for several years, and something this obvious is hard to miss. He has to tell him, because he hates lying to Shane, but it scares him to think of Shane's reaction. The reason the younger vampire had become a vampire in the first place was because nobody had cared about him, and Levi doesn't want him to ever feel that way again.

When Shane takes his face in his hands, Levi's grip on Shane's hair tightens, and he can feel the guilt forming into tears behind his eyes, the sweetness of the gesture getting to him. He presses harder into the kiss, a little more desperate.