From the looks of it, Suo seemed to be able to think with a rational mind which Jason had not expected of him.
That was after their small incident that occurred barely a few minutes ago.
Jason was unsure if he had to fight against Suo in three months because that was just something he had said quite casually and without any intent to actually do so.
However, if Suo challenged him in three months, he wouldn't back off. Instead, Jason was confident of reaching a combat prowess comparable to that of a peak-Master rank, without the need to let a soulbond occupy his mana core!
That way he would be weaker than Suo, but it was not like he relied on his combat prowess for anything either way.
In the worst case, Jason was confident that he would be able to fight Suo head-on by using his fortified soul conjunction and black origin flame.
As such, he was unbothered by Suo's anger towards him.
