[Dimitri's expression could not push into a wider smile than if he were actively trying.]

Dedue? It is he who has snatched your affections so effortlessly?

[This may sound like a callout post towards Lorenz, but, no, Dimitri just feels that Dedue naturally does this. This is definitely not bias.]

[...There may be some bias.]

Or - perhaps I leap before the cart and horse, assuming so much.