So I have about 6 really good friends. One of them invited two of my friends down the shore tomorrow. I wouldn't care but they all were extremely secretive about it. It really pisses me off how she acts so nice to me then goes behind my back like this, she's done it before too. I really want to get back at them- yeah yeah yeah I know two fires only make a bigger fire, I just am pretty pissed right now.

You would not want to stoop to her level to get back at her. For whatever reason they are secretive, it won't stay in the dark forever. Wait for that time.

Maybe its time for a better friend, one that's dependable and trustworthy? Is this the same one in your other post??

No, it's a different one, but she took the girl in my othr post. She was one of the 2 that were asked to go, and she was secretive about it.

They don't sound like very good friends to me. You can do better.