Taurus won't answer my phone or return my text messages. What happened?

I'm Taurus, and my two best friends are Pisces. I think, if she is a good friend, she doesn't answer the phone or reply to the text message, that is, she really has something to do and can't answer it. There is also that when she is in a bad mood, she doesn't want to talk to anyone, so she doesn't return any phone calls or text messages ... If she is not a particularly good friend, it may be that you did something to make her angry and didn't want to talk to you.