Go behind ones' back.

I'm so tired of it.

One of my three best friends are going to SouthKorea; and she haven't told us.
Me and one of the four of us got to know it today, through another friend that we've started to be with.
Sure, I'm happy for her sake, going there and all, I'm even a bit jealous. But the thing that makes me mad is the way she did it... She's gonna go and fix passport tomorrow and all.. So we asked her today why she hadn't told us, and what do we get?
"But I didn't now when we're gonna go"
What the hell do I care?! If she's gonna go and tells it to a person that isn't even one of her closest friends, why don't she tell us?! Am I so freakin' scary or have I done something wrong?

Okay, I'm flippin' out here.... Freakin' out... Probably I'm pretty much over-reacting, but still... It really feels like she've gone behind our backs... We took care of her when she was alone and introduced her to everything that has to do with this music... I've helped her with so much and the two others too... I'm trying to call her everytime we're gonna do something and try to do things, and this is what I get? What we get?

I really wonder what we've done so wrong she doesn't tell us such things. 'Cuz if she doesn't even tell us about travels, then what else doesn't she tell us? Are we untrustable in any way? 'Cuz if there's something I want my friends to know, it's that they can trust me... I don't just say anyone is my friends, since I only have one type of friends... Other people is just people I know or classmates and so on... Not friends.
A friend for me is someone that I can trust and that I could sacrifice myself for.
That's why I choose my friends.