Vision and Layla may be in the same herd, but they're definitely less than friends. Vision finds Layla's flirting inappropriate and wrong, while Layla finds Vision stifling and annoying. They are constantly arguing.
I imagine Vision's just found Layla flirting with a bachelor stallion, and is calling her up on it. Layla thinks it's none of Vision's business, and is telling her so. Will these two ever get along? XD
I hope you don't mind this image, Elkie. It was your suggestion that they be rivals that inspired me to make this picture, and I'm really quite pleased with how it came out ^^
Vision (c) Elkie
Layla and renders (c) me
Background (c) Spirit:SoTC