Le Divorce by Diane Johnson
Summary of Le Divorce by Diane Johnson: When Roxanne Walker de Persand's husband leaves her pregnant and alone, she turns for help to her sister, Isabel, but the de Persand family subtly governs her choice for divorce, especially since she has a painting worth millions in her possession.
Quick take: Yes this is chick lit, but it's not fluff. A social commentary of a young woman, family relations, love relations, etc. in France. A good read, realistic.
But if you don't know French, you may struggle a bit when French phrases and sentences find their way into the text.