Riled R&B queen Beyoncé and her marriage are under strain amid fears her husband Jay-Z’s friendship with accused sex fiend Sean “Diddy” Combs could ruin her reputation, sources told RadarOnline.com. Jay-Z is said to be bristling behind the scenes over wild accusations linking him to Combs’ alleged misdeeds and confidants said he’s publicly putting on a united front with Beyoncé as they scramble to protect their careers. The power couple’s lawyers recently issued a scathing letter to newsman Piers Morgan, forcing him to apologize after a guest on his self-named YouTube show put forth unsubstant…
