Why is my friend making excuses to not hang out?

I asked my friend if she would like to spend the night next week and come over Friday, but she said she has a test on Saturday. But I told her, “Well just come over after you’re done. If you can’t come Friday because you have to study that’s cool but come over after the test.” Then she said she’s going to video chat with her best friend later that night but I said, “Okay so what? You can still do that when you’re at my house. No excuses. Besides, I haven’t seen you in two months. You can make time.”
She said next weekend would be better. Whatever.

Why is my friend making excuses to not hang out?
Post Opinion