[LyricalAura]

There are this many people who would look at an emotionally fragile, depressed, suicidal girl and think "yes, clearly the best course of action is to show her something incredibly cruel that is her worst nightmare before I try to talk her down from the ledge"?

It's not like Battler was trolling her either. He gave her the key to the diary, said up front that the purpose of his game was to convey a message to her (to wit: the world doesn't suck, you don't need to kill yourself) rather than to show the truth, and told her she'd eventually have the choice whether to use the key or not after she heard him out. He confirmed, while not in front of Ange, that he intended to respect her decision on that matter. The fact that Ange misinterpreted his intentions as trolling is not his fault, and neither is the fact that Bernkastel sabotaged all of his work before he could finish.