Why did BL, in the beginning, keep telling JB “I don’t want to step on toes” etc yet, proceeded to make the movie hostage until she got all her demands?

The way she texted him about how she wants to not step on toes, just be helpful, “Can I take a ‘pass’ on it?” etc. comes across as malignant narc manipulation. While she was saying this stuff, I can’t help but wonder if she knew what her agenda was and deceived him. She was aware she was stepping on toes and kept pushing further to the point of being downright mean with her threats to not even promote the movie without every single demand of hers met.