Woobie, Destroyer of Worlds/Playing With

Basic Trope: The Woobie wants to destroy everything and everyone to end suffering.

Straight: Bob loses Alice and vows to get revenge on her attackers.
Exaggerated: Bob thinks that everyone hurts Alice, so he becomes an Omnicidal Maniac.
- Bob has suffered viciously at the hands of the world he lives in, and can't simply kill himself. Solution: END IT ALL!
Justified: Bob has suffered so much abuse, he snaps and is clinically insane.
Subverted: Bob is actually an Axe Crazy Blood Knight or Psycho for Hire, and is just using Alice's death as an excuse to split some heads open.
Double Subverted: Turns out, Bob is crazy, except that he truly, genuinely cared about Alice and was trying to Become His Heroic Mask. After losing the only one who saw the good in him, he's hell-bent on vengeance.
Deconstructed: Alice was a Person of Mass Destruction killed with the support of essentially the entire world, with only Bob who looks up to her. As a result, nobody sympathizes with Bob's rebellion, and it ultimately comes across as pointless and stupid.
Inverted: Iron Woobie.
Enforced: "We can't just have our Omnicidal Maniac destroy for the lulz!"