Complex sentence: David dated soprano and member of U.S.popera group Three Graces, Joy "Sarah-Joy" Kabanuck, for 6 years before being married on August 8th, 2009 in New York City.
Split into simpler sentences: David dated soprano and member of American popera group Three Graces, Joy "Sarah-Joy" Kabanuck, for 6 years. David and Sarah were married on August 8th, 2009 in New York City.