I'm not going to invite my friend with me
What makes you not want to include your friend?
I'm tired of her whiny attitude and she's a hassle to my already fully packed schedule
If she really wanted to go that will be very sad for her. You should invite her along and have fun with her.
I don't really care how she feels. She is really irritating me.
Excluding your friend is hurtful and may lead to her resenting you. It would be good of you to let her know that you would like for her to join you.