I can’t say what the spiders were thinking at the moment. Never trust your ‘so called’ friends, is what Ellie was thinking at that moment though. There’s a reason they’re referred to as ‘so called friends’ and not “actually totally are your friends”, she would be reflecting.
For example lets say you’re having your birthday; there’s cake, there’s balloons, and a little bit too much wine. Most people would bring you a card, the boyfriend aught to bring flowers, and maybe a few people would get you something you actually want. But your ‘so called friends’ from that Sayang Organization, they bring a Sack Full of Spiders. That’s an awful gift; nobody wants that.
And so there Ellie was, in a Sack Full of Spiders, thinking about what a disappointing birthday this was turning out to be. But what were the spiders thinking?
One of them might have thought, “why do all the other spiders not talk to me when we’re injecting people with venom? Are they angry at me? Is that tarantula spreading lies about me again?”. And that tarantula might have thought, “why is that other spider trying to constantly talk to us while we’re biting people. Can’t he see we're not interested in his stupid hitchhiking plans? He’ll never go to Europe anyway, he’s in a sack like the rest of us. Just except it already.”
And then all the spiders might slowly turn on one another, as tiny spider shaped imps of emotion whisper on their shoulder (thorax?) driving them to rage against their compatriots as Ellie folds her hands into an evil finger pyramid.
Or maybe they didn’t think anything at all. Maybe I’m the one over thinking it; maybe they are just spiders in a sack.
I don't know, I think I've had too much wine.