Complex sentence: In one episode, Beetlejuice lent Lydia his funny bone so she could be funny as part of a school show, but without his funny bone Beetlejuice became much more serious and normal; this change in him even disappoints Jacques and Ginger.
Split into simpler sentences: In one episode Beetlejuice lent Lydia his funny bone so she could be funny as part of a school show. But without his funny bone, Beetlejuice became much more serious and normal, this change in him even disappoints Jacques and Ginger.