Complex sentence: The couple did not like each other; while Louise Bénédicte found her husband weak and abhorred his lack of ambition, he could not stand her terrible temper and deliberate attempts to embarrass him at court.
Split into simpler sentences: The couple did not like each other, Louise Bénédicte found her husband weak and abhorred his lack of ambition. He could not stand her terrible temper and deliberate attempts to embarrass him at court.