Their marriage faced a number of problems, including infidelity on both sides.
Following Cassie's death in an automobile accident, Nick cheated on Sharon with Phyllis Summers, resulting in a pregnancy which ended their 11-year marriage.
However, the actress has expressed displeasure with Sharon being paired with "too many men" because it "waters her down", wanting to incorporate different aspects of Sharon into her performance.
Having played many facets of Sharon over the years, Case said: "It’s almost like I’ve played 15 different characters in my career when I’ve only played one.
When first introduced, Sharon was a young girl from the poor side of town.
Nick and Sharon married, had a son named Noah, and later won custody of Cassie, the child a teenaged Sharon had given up for adoption.
Nick becomes distant from Sharon, and is unfaithful to her with Phyllis Summers (Michelle Stafford).
The marriage ends the following year; Nick moves on with a pregnant Phyllis, who gives birth to their daughter Summer Newman (Hunter King).
The supercouple pairing of Nick and Sharon attracted a large fan following.
Case has become popular with viewers and her performance has received praise from critics (particularly for overcoming heavily panned writing), while also earning her several award nominations including winning a Daytime Emmy Award for Outstanding Supporting Actress in a Drama Series in 1999.
Sharon married her ex-father-in-law Victor Newman, gained control of his company (Newman Enterprises) and burned down his ranch—a sequence of events which resulted in her being diagnosed with bipolar disorder.
The character was then involved in a DNA test alteration storyline, which was also heavily criticized by critics.
Although Sharon also moved on, marrying Jack Abbott (Peter Bergman), Nick and Sharon remain in love.