I Spy on My Siblings

Ever since I was little, I've had a tendency to spy on my older siblings. I'll listen in on their conversations when they think I'm not around, peek at their diaries (yes, even though it's kind of illegal), and try to figure out what secrets they're keeping from me. Sometimes, the things I overhear or read make me feel like I know more about them than I should, but other times, it just leaves me with a bunch of unanswered questions that only add to my curiosity. I don't mean any harm by it; I'm not trying to cause trouble, and honestly, I wouldn't tell anyone else what I find out. It's just this weird obsession I have that never seems to go away. Am I the only one who does this kind of stuff? Is there something wrong with me for wanting to know everything about them? If you've got any thoughts or advice, let me know.