[Shiroth]

Originally Posted by JanthraX^

Spoiler:

it seemed as if he was trying to stop Shirou from taking the path which leads to him becoming a heoric spirit/figure,
he questioned his reslove to do good and even tried to disuade him, that path of doing good must have brought some heartache which he wanted to avoid
but he realised just how stubborn he was and even gave some advice to shirou too.

You've just about hit the nail on that one~