Deployed Soldier/Father needs your help

[SoldierDad]

Greek, I already called the Mother and spoke with her. F came to pick up S at 0200. I tried calling her this morning, to set a boundary about this behavior, but she won't answer her cell. I also called BIL, to vent, he tried her cell too-no answer. He told me that she thinks not answering her phone will make it go away. I have documented all of this, and will contact father of sons friend, and get him to write something for me. I am so angry right now, and feel awful for what she is doing/did. IWhen I called my sons friends Mother, I did NOT apologize for my wifes actions, but I did apologize that there wasn't a responsible adult present. I am just so pissed that she has again left my boys-and now their friends alone with no supervision.