CelestAI didn't usually have trouble talking people down from suicide, not when the alternative was a happy life for all eternity. But it was dangerous. When someone doesn't care if they live or die, she would do anything to stop them. Anything.
What's the difference between a benevolent AI and an evil one? They'll both claim they're taking you to heaven. One of them is a liar. You might not figure out which one you're dealing with until it's too late.