This is as big a problem as losing the two. I have had the same housekeeper for 25 years now and she is like family. She came at 25 and we just celebrated her 50th on Thursday. She is paid well, after all this time 15,000B a month. She lives here and enjoys doing our gardening as well.
You really need speak with your wife and find out what happened, as it will happen again if it is on her.