Complex sentence: Meanwhile Jennifer has followed her to Hollywood and marries nightclub singer Tony Polar, who it emerges has Huntington's chorea (a fact his sister had been concealing) and his care results in mounting medical expenses.
Split into simpler sentences: Meanwhile Jennifer has followed her to Hollywood and marries nightclub singer Tony Polar. It is revealed later that Polar has Huntington's chorea (a fact his sister had been concealing) and his care results in mounting medical expenses.