Should i confront her or see if she says something to me?

so today i had a soccer game at her school and she said she was going. she sounded definite and excited to go. she then said that maybe we can do something after the game. so come game time...no where to be in sight. didnt see her there. no texts or IMs saying what happened, but her away message said she was out with her friends. i feel really unimportant. like i was so excited to get to see her and i felt really let down. do i make the effort to confront her, or do i wait and see if she says something to me about being there? part of me wants to see if she will, but then part of me just wants to say something because if i dont nothing will come of it