You are within your rights to do that since the order says by agreement. Get ready for her to file a motion to modify. If she does, hire an attorney.
This answer is intended for informational and educational purposes only and should not be considered legal advice nor forming the attorney client relationship. This attorney is licensed in Texas.
You need to go back to court for a revised order. You can find an attorney in your area to help you by searching the attorney profiles here on Avvo. Good luck!
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