Hi John
From someone who has worked away from home a lot including overseas which was part of the equation.
I would humbly suggest, that if you have a contract of employment that requires you to work away from home, which no longer suits your personal conditions, but is the only work your company can provide for you, then to be blunt you need to weight the pros and cons equally, it maybe that they could lay you off due to lack of work opportunities, depends on what your contract pf employment says.
I had a young family and went away for a year no leave hard but it paid the bills, it could be that you need to speak to your other half and discuss the pros and cons of working away, I guess it's down to you and your family to weigh up what the important issues are mine and my families at the time was money, to provide safe housing, it made us stronger although I am having some problems with my pension at the moment, talk it over with Her in Doors see what She wants out of life, I she need to speak to someone who has been there done that and got the T shirt many times over, phone number on request, good luck