Please Please Please tell me what to do!

Going to Orlando with trey, Jamie, squirell,and ashley was amazzing. (two Z's for extra Amazingness!!)

My birthday is tomorrow!! Yesss!
" How you brush your teef with those gold teefasis?? Yayah!" trey is a crazy kid.
I bought the fall out boy CD yesterday. Its like my favorite CD ever. I also bought the 97x green room cd. Good stuff.
Im getting ready to go to the skate park to see scott. ( read below for more drama with that scene!
But on a sadder, much angrier note, apparently Jamie told my sister while i was doing something that " Scott really doenst like her- She missreads the signals and takes his flirtation the wrong way." And she went on to say, " Scott and trey think she is too young and and that they wouldnt want to take her virginity."

So here is the funny part : Jamie doesnt know that I know what she said...
So she calls me today : " Hey, are you going to the skate park tonight?? Scott is going to be there!!" . So for a guy who isnt interested in me, why would she say this?
For a guy who has admitted he has feelings for me, and told me that "three years differance would work," why would she say what she told my sister?
For a best friend who is supposed to have my back, this isnt very friendly.
Im caught up in all her lies and dont really know what the truth is anymore.

SO I NEED YOUR HELP.... How do I call her out on it??