"Look I told you I will take them next week for the week, that's what we agreed on, I'm not changing things now because it's suddenly not convenient for you. Stop contacting me on this. I will pick them up next week. Thank you and Good Bye!"
- no cus words, no anger, just being strong & firm and standing your ground, she can't push you around if you don't let her, stop letting her. Being strong doesn't require yelling, brute force, being an a$$hole, etc.
Being strong means you can handle it, no matter what comes your way, you're going to be ok because you will make it ok. And you don't need someone who is this negative & abusive in your life - you're moving on to bigger & better things and this is her loss.
You need to believe this, make it part of your being and live this everyday.
