Question juridique clé
Whether the wife’s concubinage justified modification of the divorce maintenance under Art. 129 CC
Solution extraite
A long-term qualified concubinage not covered by the divorce agreement can justify ending maintenance.
Motifs extraits
The decisive point is not mere foreseeability of future concubinage, but whether the parties actually regulated that situation in their convention. As no express clause did so, the concubinage constituted a new relevant fact.