Simplify the following text for a Grade 11 native English-speaking person.
Original: The couple separated in 1990 , but were unable to get officially divorced because of Irish laws regarding marriage annulment ; divorce was legalised in 1995 and the couple were legally divorced in 1996 .
Simplified: The couple separated in 1990 , but were unable to get officially divorced until 1996 because of Irish laws regarding marriage ; divorce was made legal in 1995 .