Ryan was so eager to ask Dylan if he found other ways to scare off bullies after arriving in his classroom, but the thing was that Dylan hadn't arrived yet.
And it got Ryan so surprised 'cause he knew Dylan always arrive at school before him most of the time, though he does get ridden to school with a horse and Dylan does trek to school.
That shows how early Dylan always wakes in the morning to prepare for school.
Not seeing Dylan in the classroom after arriving in it made Ryan start doubting Dylan was going to come to school today. A few minutes passed, and Dylan hadn't yet arrived at school, which made Ryan start doubting more that Dylan was going to come to school.
But Ryan was so surprised when Dylan walked into the classroom...
According to what Ryan discerned, seems like there was a particular reason why Dylan arrived at school late because this was the first time he was arriving at school this late.