Is AUTHOR wrong in the post ? POST : We are a group of four friends in our final year of high school. We are planning to go to South Korea this summer after we graduate to visit one of our other friend, and we've been planning this trip for a while, but delaying buying plane tickets because we are still unsure of the dates on which we will go. 

Because in order to pay for my expenses during the whole month we will stay in the country, I have to work in July, as well as another one of my friends (let's call her S). Last friday, I learned that the other two (let's call them J and M) planned on going to buy plane tickets together this week on wednesday, which is a problem because :

a) our parents were supposed to meet and help us sort everything out to make sure we were all on the same page before buying the tickets

b) I'm taking my photo for my passport and doing some other really important stuff for the trip on wednesday, and so is my other friend S

c) the departure date falls right on the last day of July, and as I don't know where I will work exactly, and what my schedule will be like, I don't want to miss a day and not get paid. They KNOW that S and I can't go if we don't work, and they won't budge. 

d) we were supposed to buy them all together 

&amp;#x200B;

When I expressed that I felt betrayed they took this decision selfishly without telling us, they basically replied that they want them now and are worried about the prices rising, which I can understand, but I doubt waiting two more weeks will change anything to the price. It's supposed to be a trip we are taking as a friend group, but the more time passes the more I wonder if I even want to go if they act that way. 

It really hurts me because it felt like they purposely make this harder for us, and when I talk to them about it they get really defensive, bringing up how long we waited as some kind of excuse. 