Where Jethro is very headstrong and charges into things without thinking, Tyson has always been very patient and measured. He learned from his brother’s mistakes.
Jethro is very much an in the moment, all in kind of person. That often led to him butting heads with their father, unable to bite his tongue and express his anger elsewhere at a later point. He has a short temper that was only further provoked by his father’s matching one.
Exactly like his younger brother, Jethro can give someone emotional whiplash by how quickly he’ll jump back and forth between emotions. He has more of a poker face than Tyson’s absolute zero, but generally, anything that Jethro is feeling will show on his face for all to see.
He cares about people deeply and he’ll gladly die to protect those he loves, but he has a tendency to think that his way is best. He’ll keep headbutting a wall until he finds a way to make it work. He’s impossibly determined. Jethro doesn’t wait around to test a theory.
Jethro sees an action to take and takes it. He doesn’t like waiting around to see what happens or to see if a better option appears. He’s a smart guy - another mathematical prodigy and heir of the Delaney legacy - and his gut instinct is usually right, Jethro simply lacks tack in his execution and delivery.
Yithrô can wait when he needs to, but it is a conscious effort and decision every time. It’s not simply the way he is, as is the case with his younger brother. He is always looking for a fight and he will choose to accept every single fight before it even reaches the plate.
