Sentence 1: Daniel and his wife were leaving soon on their cruise. 
 Sentence 3: Daniel's brother called to ask exactly on what ship they were leaving 
 Sentence 4:  Daniel told his wife that his brother and his wife were joining them 
 Sentence 5:  Daniel's wife ended up enjoying her family vacation 
 Option 1: They had decided that they needed some time away together. 
 Option 2: They had decided that they needed some time away from their families.