Hi ! I would like to have your interpretation on the scene where Killua gives advice to Gon for Palm. It surprised me because Killua wants Gon only for himself. I think that either he hasnāt discovered yet that he is in love with Gon, or he was trying to convince himself once again that Gon is just his friend or he just wanted to answer lucidly to what Gon was telling him (stupid question but it intrigues me ><)
Here's the scene from the manga. We're not given any more context to the conversation than this. Based on the little we do see, it's likely more of a conversation on "rehashing events of the date" and/or "how to get Palm off Gon's back" more than "dating advice from Killua." Based off Gon's posture and what he's saying, he seems maybe a little troubled and defeated, while Killua looks surprised (presumably at what Gon's telling him), so I think that supports this conclusion more than Killua giving Gon dating advice more generally.
Killua is suggesting that Gon tell Palm to wait until later, so it's not like he's telling Gon to "Go for it!!!" wholeheartedly either, haha.
Of course, Killua is concerned about their mission and Gon's safety, so getting Palm out of the picture (even just temporarily) is important, and he may hope Palm will lose interest or things otherwise won't work out between them if the whole Palm situation gets postponed until later.
I do also think Killua has a misguided belief that Gon is more interested in and invested in the relationship with Palm than he actually is, which is supported by Killua's annoyance at Gon being worried about Palm during the palace invasion, and Killua's breakdown later in CAA over the thought that Palm might be able to reach Gon while he can't.
Killua, in his panic, seems to believe that Gon's relationship with Palm is more mutual and serious/romantic in nature than it actually is, and so it makes sense to me that he might give Gon at least a little earnest advice under the misguided assumption that, even after that disaster date, Gon wants to be in a relationship with Palm. There's also the question of how aware Killua is of his own feelings. He very well may be in denial or still grappling with what his feelings mean at this point, and regardless I don't think he has much hope of Gon reciprocating. So, he's trying to be a good friend and tell Gon what he thinks is the best course of action.
Also, like I've said about this scene before, it's pretty ironic that how the Palm date incident comes to a close is with these two on...what looks like a date.
You can read more of my takes on the Palm subplot here, I've written a lot about it previously!