Complex sentence: Teddy's mother is jealous of her son's talents and friends, fearing that his love for them will eclipse his love for her; as a result, she hates Emily, Teddy's drawings, and even his pets.
Split into simpler sentences: Teddy's mother is jealous of her son's talents and friends, fearing that his love for them will eclipse his love for her. As a result, she hates Emily, Teddy's drawings, and even his pets.