You guys are thinking about the leaving the home as a problem on principle...

My reccomendation is purely strategical... when the abandoned spouse vacates it shows that the AS is distancing themselves from the marriage until the WS stops allowing teh OW to attack that marriage... she says outright that she will return when the OW is out of the picture...

It puts control in her hands... when HE leaves, it just gives him freedom to play as a single man or return to a family whenever he likes... THAT needs to END