What is the most logical next event?

How to deal with moms who bully other moms
Wait before you respond, if you do.
If the bully is sending you nasty texts or is attempting to bash you on social media, don't respond right away. You may be tempted to stoop to her level and throw back what she is giving you.
Giving into this, however, is exactly what she wants. If you have the opportunity to delay contact, give yourself a day or two to calm down before you respond.