Curiosity is natural
Curiosity is a natural emotion. However, curiosity is also one of the most complex aspects of human nature. Many animals can display a great deal of curiosity about their environment. This is usually a direct series of events with clear causes and even more clear effects. It's quite a bit more muddled with humans. When people become curious about something or someone it can stem from any number of different causes. Likewise, the end effect of curiosity will usually be quite a bit different than what is found in animals.
For humans, curiosity often means a lot more than simply checking on something and then being done with it. Because people have large minds and even larger imaginations, curiosity can easily become an all consuming thing. Some people are even more prone than others to difficulty dealing with these situations. Curiosity for some people is an itch that comes about every now and then. Curiosity for others is an all consuming passion which detracts from one's quality of life. That's why it's important for people in this situation to find methods to deal with their overabundance of curiosity.
Methods to peek behind the curtain
When this curiosity is focused on a person than the easiest path to figuring things out would be to use something like snapchat spy. This service is as easy as entering some basic information about someone's snapchat account. From there the service will allow someone to actually spy on the activity within that account. This can be a huge boon to people for any number of different reasons. It might show something that had long been suspected. Or, on the other hand, it might show that someone is far more trustworthy than he or she initially seemed. But whatever the reason for using the service there's one thing that's clear. It can help to put down the fires of overwhelming curiosity.