Could I take legal action against this person?

[Sebastian]

Well I am going to turn this into a very condense short version of what happened. I have been talking to this one girl for awhile, we have been kinda dating but she has stopped talking to me sometimes it would be weeks. So I figured that the relationship was over. Well I told her that "I guess it was over so bye" She would never respond. I would then go out and flirt with some girls and and post about them. Well she did not like that and now she has screenshot my profile and says that "She is going to post my profile to everyone she knows." She thinks that I will not make me et a girl again. The only problem I have with this is that I have my profile made super secure. All you are allowed to see of my profile is my name and profile picture. If she posts my private profile, with all of my statuses then could that be an invasion of my privacy?
Also I blocked her on facebook, she took a screenshot before i blocked her, she has pictures of my posts and pictures.