Complex sentence: Inordinately sensitive to criticism, Palace has been withdrawing from a wife who is becoming critical of him, and when he decides he needs to engage a publicist to cultivate his neglected public image, he hides his plan.
Split into simpler sentences: Inordinately sensitive to criticism, Palace has been withdrawing from a wife who is becoming critical of him. When he decides he needs to engage a publicist to cultivate his neglected public image, he hides his plan.