Simplify the following text for a Grade 6 native English-speaking person.
Original: Zeus ' wife , Hera , a goddess jealous of usurpers , discovered his affair with Semele when she later became pregnant .
Simplified: When Hera , Zeus 's wife , founds out he has another woman pregnant , she tries to destroy a pregnant Semele . Zeus rescues Dionysus , but Semele is destroyed .