View gallery Abbey Romeo and David Isaacman are making headlines amid their reported breakup. Although neither of the Love on the Spectrum stars has publicly commented on the rumors, news of their split broke TV fans' hearts. Many couldn't grapple with the thought of the series' longest-lasting couple breaking up after five years together, so why did they? Here's everything we know so far about Abbey and David's reported breakup. Did Abbey Romeo & David Isaacman From Love on the Spectrum Break Up? Yes. According to The U.S. Sun, Abbey and David broke up after five years together.