Just a bit unwanted.

So, heres the story:
me and 3 girlfriends are goign to see pirates 3 tonight. it wasnt like an official 'girls night', where we include everyone, but we all decided that, since we hadnt gone out in AGEs together, we would go see the new movie.

then today...another friend heard my friend say "im so excited for tonight!" and she asked why, etc, etc, (now we were purposely NOT spreading it around, just because we didnt want ppl to feel left out.) and she invited herself.

i mean, she could have asked or something, but she just said she was coming, and then we turned around to her phoning her mom to get her ticket.

so. what should i do? i mean, we were planning on going as a group of 4. and i know that shell be trying to controle things. it just all seems to make a movie experience i was soooo excited about take a turn downwards

Tell her straight out that this is something that you & your three girlfriends wanna do as just the four of you . She can go with you next time , but for this occassion, you guys want it to be just you guys .
If she has a fit about it, tell her I said she needs an attitude adjustment and a life . Maybe even a brain .
..__MiNDYY