That is soooo true.... as I've gotten older, I now kick myself in the butt for ever acting stupid with my folks. As you get older (hopefully wiser as well), you'll realize the importance of family and the need for closeness with a positive bond. I say, confront her, tell her you know about her "spying" on you, and you don't appreciate it. Ask her to talk to you if she'd like to know what your up to, not "look over your shoulder" by reading all your messages. Where is the trust in that family? Do you have older siblings, or are you the oldest? If you have older siblings, ask her if she would've or had done the same to them..... if you have younger siblings, ask if she plans on doing the same to them when they are older. If your an only child, explain to her that not having any privacy in the house will most likely lead you to want to be more stealth like when on the net, and probably wind up shutting her out of your real life. IDK, just my .02.