Pressing Charges for Invasion of Privacy in Canada (Facebook)?

[Alpine]

Under Canadian law "invasion of privacy" the way you describe it isn't a crime. Privacy law is Canada is directed towards businesses like banks and other organizations (including government) that collect people's personal information.Most other privacy related matters are covered by other laws ,for example someone following someone around and watching everything they do,or peaking in their windows etc;this is called criminal harassment (stalking) and covered under that law.Wiretapping or putting a bug on someone's phone is covered under communication laws.

In your case there's not much anyone can do- especially if you were in her house.(you say "your room" but not "your house") and in general the law does not give much protection to things shared ,even privately on or through social networking sites.