I understand that you may be upset or disappointed with your best friend for being late. It's natural to feel frustrated when someone doesn't meet our expectations, especially when it affects our plans or causes inconvenience. However, it's important to remember that everyone makes mistakes or faces unforeseen circumstances at times.

Instead of labeling your friend as "terrible," it might be more productive to communicate your feelings to her in a calm and understanding manner. Let her know how her lateness affected you and discuss ways to prevent similar situations in the future. Remember, friendships thrive on open and honest communication, so try to approach the situation with empathy and a willingness to find a resolution.