Can a man enjoy time with his ex-wife without telling his current wife?
Answer:
In the Name of Allah, the Most Gracious, the Most Merciful.
If a person has given talaaq (divorce) to his wife, it is absolutely forbidden for him to have any sort of relationship with her, as she is no longer his wife. It is also forbidden for him to be alone with her or to unnecessarily talk and interact with her. This is regardless of whether he informs his current wife or not.
And Allah knows best.
Mufti Faizal Riza
8/9/2011