Background: Ashley Abbott is a fictional character from The Young and the Restless and The Bold and the Beautiful, two American soap operas on the CBS network. She has been most notably portrayed by Eileen Davidson, who originated the role in June 1982 before departing in 1988. Brenda Epperson portrayed Ashley from 1988 to 1995, before Shari Shattuck portrayed the role for the next three years, until Davidson's return in 1999. Davidson was nominated in 2003 for Daytime Emmy Award for Outstanding Lead Actress in a Drama Series.
Context: Davidson describes Ashley as a "dynamic character". She has been characterized as "sassy" yet an "honorable heroine". The Record describes Ashley as "headstrong". She is recognized for her unluckiness and long-term suffering. Davidson stated, "She is a heroine. So often she was being victimized by people and trying to always rise above that, and being driven insane and losing babies, etc." In 1990, The Washington Times described Ashley as a "smart woman", known for her "level head" and "business success". Ashley is dedicated to her work and has a strong sense of family. She is a beloved member of the Genoa City community. Her passion for the family business, Jabot Cosmetics, cost Ashley her marriage to Cole Howard (J. Eddie Peck). Ashley has been involved in a number of different romantic relationships over her duration on the series. Her relationship with Brad Carlton (Don Diamont) came as a shock, due to Brad being beneath her socially. Epperson, who played Ashley at the time, was uncertain of Ashley and Brad's decision to get married. Davidson opined that a storyline in which Victor's son Adam Newman (Michael Muhney) gas lighted a pregnant Ashley in 2009 was payback for Ashley stealing Victor's sperm years ago to conceive Abby. She stated: "I think the character really suffered after she stole Victor's sperm from Diane [...] After that, the viewers lost a lot of respect for Ashley. People wanted Ashley to pay for it. My opinion? Although last summer's gaslighting storyline was used to propel a lot of other stories, it was also about making Ashley pay. Now we can close that entire chapter because Ashley paid. It was Ashley's redemption". Around this story arc, Tommy Garrett of Canyon News described Ashley as a "damsel in distress", stating that she had a "twisted mind" due to suffering a hysterical pregnancy after losing her unborn child at the hands of Adam. Following the death of John, Jack works desperately to remove his wife Gloria Abbott (Judith Chapman) from the family, even illegally making changes to John's will. Explaining Ashley's ambivalence towards the situation, Davidson stated: "Just because you don't like somebody doesn't mean you should do something illegal [...] The point is, their father loved her. And even if they don't like her, they have to honor what he wanted. Ashley never wanted to do anything that went against her father's wishes." The actress stated that Ashley "just wants" Jack to "do the right thing".
Question: Why was it a shock for their relationship?

Answer:
shock, due to Brad being beneath her socially.