Is there still time to send a card? belated I know.Tongue in check EW.
That puts the ball back in her court.
Otherwise she has new ammunition.And boy she wil feed that .
Only leave sending the card if in your core being you believe this is what you want.Not because it is like a swip at this girls behaviour.
I may be wrong.Just an idea.

.....I know its game playing and I dont do that in my life but all this is new and raw.And the child is the pawn.

Recently I was supporting a friend who had inlaw troubles.This was crunch time and I advised that she "keep herself in the right..act from a place that showed all she was above their behaviour." because she is a special caring person.We were with a church Minister who was giving support also.
She was congregant in her answer.
"No..I have done nothing wrong.They have.The clock cannot be turned back on how they behaved."
she was relocating and would not tell them she was going nor where.Leaving no address.Thats a big message.
Next day I contacted her.Told her I was wrong.she knew what she was doing but I had been "Devil's advocate" but only because I cared for her and the long term implications.
I had not walked in her shoes when over a long period they ignored needs she and her late husband had.Neglect that caused knock on effects.Yet asked and received financial help from the couple.
This allowed us to further discuss issues she had not shared and I continued to agree she was doing what was right for HER.

Have a happy weekend