So while I was making plans to celebrate my friends' birthday all this while, I just got to know from her that they are going on a trip to celebrate along with their sisters. I just don't understand why I wasn't invited or even told about the plan when I'm the closest and I guess the only (girl) friend in town. Neither are they going very far from our native place. I just really feel very weird. Weird enough to give me a sleepless night. Don't really understand how to go about this.