Stop taking the bait. If she were truly happy, she would not need to hurt you. She would be too busy living her glorious life.
Focus on what you can control. Be the best dad you can be. Thank her internally for sending this because it will help your custody case. Be careful about being "nice" and giving her extra time until that is resolved. You don't want to appear that you can't handle the time you have or don't value it. There is time to be decent about everything later. For now, follow the agreement to a T, keep notes and be very detached. Everything you send, text or email is a potential exhibit in the custody dispute.
Your D is too young to see it now, but in a few years she will put it all together. Be the consistent and stable one for her.
