Honestly, Hisoka must be such a huge pain in the ass. Imagine you're Chrollo - you're just doing your Phantom Troupe thing, killing, looting, stealing, donating, just minding your own business. And here comes this weird Jester/Magician pervert who wants to fight you. Not because he's pissed at you or wants revenge, but just because. He thinks you're strong and wants to fight you - no other reason. He just wants a fight. By the way, he also has a weird crush on you because he thinks you're strong. So he starts hanging out with you and borderline stalking you.
Anyway, you try to avoid him, because you really don't see a reason to fight him, but he won't let up. He follows you. Tries to make deals with you. Tries to get you alone. He just won't let up.
So finally, you agree to fight him. And you absolutely cream him. You literally explode him to death. And you think it's finally over with this dude. BUT HE DOESN'T DIE. And now he's really offended and mad that you beat him, even when it was his idea to fight in the first place. He's so mad that you beat him that he starts taking it out on your friends and killing them. Your friends had no beef with him, you also had no beef with him. You didn't even want to fight him, and now that you did and won, he's all mad about it and trying to pick another fight.
Can you imagine how much of a pain in the ass Hisoka must be? It's not like Hisoka ever had any grudge against Chrollo, Hisoka just wants to FIGHT. How unfortunate is Chrollo to have crossed paths with this perverted magician who has no motive other than to kill you for the sake of killing you?