She's married to a man who needs more mothering than her three children combined and who is constantly getting into scrapes. I'm sure there's a level of frustration with life. Years ago someone surmised that Laurent suffers from depression or unresolved issues from his childhood and that Claire was overwhelmed by what she'd agreed to take on. I don't doubt it.
Reminds me of the time that Claire defended Laurent, by angry intervene during a speech of Laurent.
The press kept on asking specific questions/ referring to a specific item to Laurent (I believe during an opening or so) and Claire told them enough is enough.
Was that the same incident where she told the press to back off because there were children in this family who were being effected by the media reporting?