Sharon's actions went undiscovered for about a year because Phyllis was comatose. During that time, Summer Newman and Jack Abbott grew closer under the false assumption they were father and daughter. However, once Phyllis emerged from her coma, she found her way back to Genoa City, determined to reclaim her life (via Soap Central).
During her mother's time in a coma, Summer married someone else, believing that Kyle Abbott was off-limits since the test showed them to be brother and sister. When she returned, Phyllis brought Sharon back to the scene of the crime, the infamous stairwell, ready to expose her lies (via Michael Fairman TV). Eventually, the kids learned the truth, and Summer and Nick Newman were reunited as father and daughter. However, Jack's heart was deeply broken because of the closeness he developed with Summer.
Further down the road, Kyle and Summer reunited, and after overcoming a few more obstacles. They are now in a loving, committed marriage and raising Kyle's son, Harrison, together at the Abbott mansion. Even though there is always the potential for their relationship to be shaken up in the future, they can rest easy knowing the nightmare of being siblings is a thing of the past.
