My girlfriend texts me to call her after class so I do for a bit, then say I'm busy and I'll call her in a few minutes. She goes " can't now I have to study for tomorrow's exam"

I go "fine I'll call you tomorrow"

She proceeds saying "what scene is this? I can't study now?" because my voice sounded like a tease on the sound clip I had sent

Anyways I tell her " grow up and speak more politely to me, I was going to call you for ten mins to see what's up but now you lost your chance."

What is this shit? Now I should ghost for hours?