X demands full custody because I'm now engaged

[sleeper]

She texted the kids informing them (not me) shed be picking them up at 11:00. Kids told me and started scurrying to get ready. Monday is our normal swap day but it happens after school, not 11:00 am.

I texted X and told her she should communicate with me and not kids on such matters. We texted back and forth then she called but I didnt answer. She then texted, "How can I communicate with you if you won't answer your phone?"
"Text me", I responded, reminding her she says she doesn't want to fight but we fight every time we talk on the phone lately.

Direct communication required.

Fight avoided.

Form of communication established.

Custody transfer boundary enforced.

I think I'm getting the hang of this.