diana, think ur frd had to cut down on tv and try to make an effort to make the marriage work. when the children are in bed, they can switch off the tv, had a nice chat, try to snuggle in bed and who knows.....
Do they have domestic help? or grandparents looking after the kids? well, if they can, try to spend at least once a wk as "Couple Day". Go for dinner, movie, etc.....