I think I know where Vellos is going on this, but he is a very surprising man, and hard to read.
Hireshmont is going in a very simple direction, and it's always the same one: exactly the direction he tells you he's going. He's been very clear that he wants a peaceful resolution, Niselur back in the church, and no war. He'll do what he needs to to accomplish those goals.
The reason Hireshmont is hard to read for you is because you're reading way to much into him.
