How do I tell this to my friend?
So spring break is coming up, and me, plus my two friends are going to Seattle. There are a total of four of us in our group of friends, but there's only room for three people. The fourth friend is arguably the least close with all of us, but still very close. We're upset that she can't come with us on the trip, but we haven't found out a way to tell her that she can't go. We're going in 4 days, and she still isn't aware. How can I tell her that we're going to Seattle without hurting her feelings too much, and making her feel forgotten? Thanks.