You are a liar

[Mess]

This happens. It's not a question of "why", it a matter of hearing what you want to hear, mishearing, missremembering, putting emphasis on certain words and not others, believing what is convenient. Add to that she is probably in a bad mood and wanted something to blame you for.

A big reason why I have always insisted with my ex that these things are email only.

[Mess]

Just don't answer the phone. Ask her to verify any phone message in an email, say your phone isn't giving messages, technical problems, etc. Bullshit.

After 2 weeks she'll settle into email mode, just don't make it threatening. If she's a natural liar, she'll be intimidated by having email proof shoved in her face every time she plays games. Save it for important things.

The main thing is, when a question comes up, email. Email again 24 hrs later if you don't get a reply. Don't answer if she calls. Don't acknowledge phone messages. Starve her out, if she only has email access to you, that's what she'll use.

[inseperationhell]

The email communication only and verify each verbal conversation with an email is now saving my butt. Things were civil at the beginning, not so much now. Now I am being accused of saying/agreeing to ABC and he is denying DEF.... my lawyer now has a full accurate account of all conversations/decisions made about the kids, finances, custody in email format. I can now stay silent on the he said/she said and I just forward on the applicable email as a reminder of the "real" story. No matter how amicable it seems - email communication can:
1) cover your butt
2) keep it amicable by avoiding a "I never said that" argument
3) refresh your own memory of events/decisions made before you speak months later to them

[first timer]

I use email for all of my communication; my ex every once in awhile will try to discuss "other" things on the phone when she calls about our kids. If its a non-issue (one that has a yes or no reply), I will answer otherwise its send me an email on the matter and I will get back to you; if I do agree to something I send a confirmation email so their is a record of the agreement; it keeps conflict at a minimal, reduces the amount of interaction between us and its a running log of all communication between us; no more he said/she said