He fell hard for Kayla Brady, but Kayla was in love with Steve Johnson.
His harder edges were softened over time by his love for Kayla Brady and their romance that played out on screen until his 'death' in 1990.
Nichols later returned to Days of Our Lives in 2006 much to his fans delight and reunited with Mary Beth Evan's Kayla on screen.
Their children Roman, Bo, Kayla and Kimberly are heavily involved across the canvas and while Bo was always considered the reckless one, his family loyalty never came into question.
Jack wanted Kayla to love him the way she loved Steve and their marriage took a dark and ugly turn when he raped her.