Jason and Percy have a very unique position of being able to understand each other perfectly where certain issues/topics are concerned. We truly deserved more of Jason and Percy having conversations that actually tackle their insecurities or burdens about leadership and carrying the weight of most of the responsibility for getting everyone out alive.
But it's not really surprising that Jason, despite his supposed jealousy or other insecurities with Percy, is still trying his best to understand him and pull him out of his suicidal antics. He and Percy are two of the most genuinely sensitive people who define their worth by being able to save enough people or do enough for others and in a weird sort of way I think they would have a better understanding of each other than most others.
(But the op's tags are the best part. I think they break down the scene in a very nuanced way that doesn't really get applied to PJO series often enough:
#I feel like too many people reduce this interaction to jason being like 'lol same"
#but idk :/
#this chapter is from jason's pov
#and leading up to it he's like "people keep walking on eggshells around me bc of the the michael varus stab wound'
#and he hates it so when he goes on deck to help out with the storm
#everyone's like wtf except for percy
#and jason states how much he appreciated percy not treating him like a sick kid
#and I feel like it's echoed in this sentiment where jason could say so many things like
#"you should never feel that way' 'im here if you need anything
#but he doesn't make percy feel alone in his desire to just.... end it all
#which ik for some people that doesn't work but you're not a character in hoo and percy is dealing with so much guilt
#and he can't tell annabeth bc she's a main aspect of that guilt
#and he doesn't wanna guilt her more and he feels ashamed and when he describes this he feels weird for feeling it
#so having jason this tough guy be like 'yo i understand it bc i felt the same way
#that's gotta mean a lot to percy
#also insane how jason who also struggles to display vulnerability
#allows it in one of few times in this moment just so percy this guy he's supposed to be jealous about
#feels comforted and not alone in his guilt and shame
#and also it's just insane how jason's wanting to kay em ess does not get talked about AT ALL
#and just seeing his mom and the pressure of new rome getting to him )
yeah so this was insane