gojo becomes possessive of geto after the incident where the jujutsu sorcerers tried to kill geto...now gojo won't let geto out of his sight and won't let geto do anything afraid that he might lose the latter which makes geto slowly become pissed with being restricted from doing practically everything...and therefore geto ends up doing something that hurts gojo...and with that a whole 360 change happens in gojos personality due to be confronted harshly by his only best friend geto..