When Kev notices and acknowledges Yvette’s presence, she explodes in anger at him.
In the face of her verbal onslaught, he breaks down and confesses everything to her. Which I don’t think was entirely needed, considering she had just watched the entire thing.
While Yvette freaks out, Kev seems horribly guilt-stricken.
But it’s alright. Kev has a plan. Kev knows how he can fix this.