waite for someone for nothing

Today I wait for my older sister drives my home, but she doesn't at school. She goes home early today and she doest tell me. After I write to her a massage, but she doesn't send back. I tell myself forget about it and than I go to but station Wait for bus. I'm a little upset because I think she should tell and let me know. That happen two times already. First time I was wait for 35 minutes. I hope I have a car so I don't need to wait for someone and I don't to wait for bus. That will send my time to do other thing.