Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
How far apart do you live and do you also work full time?
How does your ex think the current arrangements will work after his move?
It is all there - and ignore the site pop ups about phone calls!
If he is moving further away then the current arrangement is no longer realistic - and in any event you do need to start planning for what happens when she starts school.
Equally if he is not able to care for her and you are then she should be with you and not an Au Pair.
Legally whatever the agreement he cannot take her abroad without giving you all the details of flights and accommodation
You need to attend a Mediation Information and Assessment meeting again to see if it would be possible to agree a proper full Parenting plan - preferably using Shuttle mediation since it is clear you are intimidated by him.
If mediation is not posisble then you can use the form the Mediators give you to apply for a Child Arrangement Order that sets out how the time is shared between a you and which will be enforceable.
You can read more here
Please ask if you need further details
Excellent idea - good luck