I am concerned about my 22 year old daughter & social media. Should I speak with her?

[BRi]

She moved away from home about a year ago to NYC, she is naturally popular has always been & makes friends in a snap, which is as good as it is bad. She's overly friendly. I have noticed recently by looking at her instagram & facebook that she puts up pictures of everything, her food, drinks, when she's at a nightclub, when she's at work. Everything. She even adds her location to the pictures. She recently ended an emotionally abusive relationship not that long ago, he spread terrible lies about her after the break-up & she went into a state of depression. He has a new girlfriend now & she thinks that she is better than this new girl because she has cooler pictures on her instagram & more followers. Maybe this is the way 22 year olds think in 2013. She seems to be finding herself & her voice, which I love & I am proud of her. But I feel as though she is using social media to shove it to her ex, she puts up pictures with guys, laughing, she's out every weekend. Her facebook is private, but her instagram is public & I am worried. She is in the entertainment business & is doing well, but I am worried about her & how she feels that she needs to prove something to the world but using social media. like look at me everyday I am doing something, everyday I am out, you should all be jealous. She has tons of followers on instagram & a lot of friends on facebook. Maybe I am over-reacting? Should I speak with my daughter or let this go? Am I thinking to much into this. She is 22, living on her own in NYC, she is successful, she never calls home for money or anything, she does not need to prove anything to anyone. The lies her EX spread about her & how he cheated on her was awful, but she is 22, this is not the end of the world, & uploading pictures of you at dinner is not going to make things better. Also her EX tried to re-connect with her many of times & each time she shut him down, not replying, she even changed her number.