Nobody will be mad at you for not telling anyone, Killua. It's okay to be selfish sometimes.

[His stomach twists at the thought of Gon getting really hurt, and while his first instinct is to assert that Hisoka was just lying to get a rise out of Killua... for all his faults, Hisoka has never been anything but honest, as far as Jaime could tell. What did he have to gain from telling Killua something like that?]

You've got a lot on your plate.