If you really DGAF you could text her back something like this.
Her: I can't tomorrow! I'm seeing someone now, as of last night. But I hope you have fun at the party
You: Woah! Calm your tits. He's got nothing to worry about, who said you were even my type?
Her: I can't tomorrow! I'm seeing someone now, as of last night. But I hope you have fun at the party
You: Woah! Calm your tits. He's got nothing to worry about, who said you were even my type?