I feel like my friends are trying to ditch me

Well, this is how I feel. But not like all my friends, just one. We are a "clique" on four people. Two pairs of best friends.
I have been hanging out with one thats not my best friend, and her best friend gets jealous. I really don't think the likes me alot..
Now for a while us four, have been planning to get together. But now, they have decided to get togheter, the one night that I can't. And I told the girl that gets jealous that I was going away that day, and she didn't tell the others, so they thought I could join them.
We have been planning this for weeks, and now I can't go, and they don't want to move the day this is going on.
I can't help but feel that this is some sort of sabotasje from the girl that gets jealous...
Am I really insaine, or is she trying to make me sad?

If she is jealous of you so much....it means that she wants so bad to be like you...and she doesnt know how...so she is trying to sabotasje you. Dont worry...just be yourself!!! that is what the others like about you:)
No worries!!!!
...Send me an email if you want...:)

how can someone really feel that strong about wanting to be like me? haha lol