CW is absolutely correct. Do not for any reason allow her to drive the custody agreement. I can assure you that if you allow fear to be your guide, you will regret it later. Been there, done that. Right now, your relationship with your kids has to be your priority.
See, your children will always be your children. You will want to look back knowing that you did everything to foster a good relationship with them. Your W might not always be your W.
If you haven't consulted an attorney, make that a priority.
Me:45 ExW:48 M:04/97 3 Bombs & 2 ReCons 1st BD 11/10 D Finalized 4/20 D-16 S-14 Going in one more round when you don't think you can. That's what makes all the difference in life.~Rocky Balboa
