Why did the super-god gene heroine betray?

Without betrayal, he stayed in the ark. According to the introduction of the novel Supergene, the heroine of Supergene did not betray. In order to protect the safety of the ark and the earth, she resolutely decided to stay on the ark and launched a fierce battle with the enemy. Supergod gene was published by the fantasy novel Twelve Wings Dark Blazing Angels.