believe it or not, you're NOT alone on that one.
to me is the curiosity that always get me to search that kind of stuff, same with ya isn't it?.
you got curious about the "what if...", right?.
and that curiosity drives you to want and see more regardless of what it is, you just want to see it, no matter how horrible it is...is that kind of curiosity that leads and drives you to search for more and without even noticing it, you want for more and cannot get enough of it.
their personalities got your attention and you know want to "test" their personalities and see their "reactions", that kind of curiosity leads to so many scenarios and you just habe to see it, like "what if they find by accident a dead body?" or "what if they start to develop feelings for certain character?" or "what if this certain character unexpectedly suffer a accident?", "how would they react by being exposed to certain elements?", if you had the chance you would experiment with them and they wouldn't be aware of it, you would LOVE to have the chance to experiment or even toy with those characters, just to get a reaction from them or for just shits and giggles.
they would mantain you amused for a long time, like forcing one of them to kill another or even going as far as to let them find out about you and try to stop you.