I agree with other. See a lawyer ASAP. Her not so veiled threat of taking the children speaks to something, time will tell what it is. However, you need to get some legal counsel and address any possible problems that may come up.
I do urge you to consider your stand on custody. Again speaking with your attorney may be illuminating as to what is considered reasonable in your area.
It does sound like W is still for 50/50, and that is a good thing. Personally I believe fewer and longer is better than switching daily, even all the way to week on and week off, a 7/7 schedule.
As I say pretty strongly around here - Feelings are fleeting.
Let your feelings regarding custody flit away. Consider W’s proposal, and other ones as well, keeping emotions out of it. Just looking at the tangible and actual pros and cons of each. Because no matter what schedule you get, eventually it will become habit and feelings will not be involved, and all you will have is the actual pros and cons - without any emotional skew.
Feel free to leverage the power of this board. Seeing the opinions on things is a great strength of a group platform like this. If you like, share your reasoning for the different schedules and get feedback. You always have the final decision, and all I would like for you is to ensure you have as much information and insight as you can have. This decision is that important.
DnJ
Feelings are fleeting. Be better, not bitter. Love the person, forgive the sin.
