I am a muslima and I live in the US. My fiance is a muslim and lives in France. He is divorced but lives with his ex-wife right now because the divorce rules in France are very strict. Is it allowed for him to live with his ex-wife if they are not sharing a bed-room?
No, they are both ajnabi, they will be sinful if they stay in the same home. Shaytaan or Nafs could lead them to sinful behavior. They should live seperately and treat one another as non-Mahrams