Complex sentence: As time passes, Mr. Bingley and Jane become more acquainted with one another; this companionship leaves the Bennet girls confused when Mr. Bingley & Co. suddenly abandons Netherfield Park.
Split into simpler sentences: As time passes, Mr. Bingley and Jane become more acquainted with one another. However, this companionship leaves the Bennet girls confused when Mr. Bingley & Co. suddenly abandon Netherfield Park.