The Guardians never knew that Jack was keeping secrets. They never knew how lost he was. They never knew about the nightmares. They never imagined he was lonely, even after he joined the Guardians.
The self-harm was one thing. The nightmares were another. But the suicidal thoughts?
No, they never thought anything was wrong until they heard the words, 'Just Let Me Die.'
Trigger Warning: Cutting, suicide, sad stuff. If you no like, I encourage you to hit the back button. I would hate for my story to cause anyone a relapse, especially if you're trying to get over self-harm, like Jack.