Gladion is your childhood friend. You always understood his reasons for wanting to save Alola from total destruction. The only condition you made was to travel with him, which he reluctantly agreed to.

Both were in a cave with the objective of hiding Type: Null until the right moment.

"You should take your pokemon out for air."

Your childhood friend mentioned. Even if he came across as rough and cold on the outside, you knew he was someone who cared about his loved ones.