Driven to Suicide/Playing With

Basic Trope: A character ends his suffering by killing himself.
 * Straight: Bob kills himself since Alice no longer loves him.
 * Exaggerated:
 * Every character kills him or herself due to suffering, leaving no one alive by the end.
 * Alternatively: Bob kills himself after getting a ham sandwich, when what he really wanted was a hamburger.
 * Justified:
 * Bob kills himself since Alice no longer loves him and he has no one left to live for.
 * Bob suffers from depression; losing Alice was the last straw in his long battle with his psyche, and he sees no other way out.
 * Alice had an actual magic aura that caused Bob's pain to ease whenever they were together, and Bob found quickly that he was in love with Alice. Now that the pain is back, he can't stand both it and losing Alice.
 * Inverted:
 * The character is a masochist who literally lives to suffer.
 * Alternatively: Bob kills Alice because she no longer loves him.
 * Whos Laughing Now
 * Subverted:
 * Bob jumps off the cliff to kill himself, but he has a grappling hook attached to his waist.
 * Suicidal Gotcha
 * Bob feels suicidal because he's immortal and can't die.
 * Bob begins to kill himself because he believes Alice no longer loves him, but Alice comes in and reassures him otherwise.
 * Double Subverted:
 * The grappling hook breaks.
 * But, later on, he really does commit suicide.
 * Parodied:
 * Bob kills himself over a papercut that won't heal.
 * Bob kills himself WITH a papercut that won't heal.
 * Bob decides to kill himself over the tiniest, most outlandish theory that the world sucks and he should kill himself to relieve the suffering. Think Itoshiki.
 * Bob pulls off a Funny Background Event by preparing and performing his suicide while Alice tries to tell Bob that there's still hope in the world.
 * Deconstructed: Characters debate at length whether Bob was too mentally ill to "choose" suicide or if suffering makes suicide noble.
 * Reconstructed: A character ends his suffering by killing himself after settling his affairs. The character makes his death seem like an accident so his loved ones would not feel guilty for his suffering (and/or to make sure the insurance policy on him gets paid out).
 * Zig Zagged: A character ends his suffering by killing himself, but this brings him to Hell. So he resurrects to end his eternal torment.... just so he can take down all of existence with him.
 * Averted: Bob is depressed, but does not consider killing himself.
 * Enforced: "We need to show Bob's anguish over Alice's rejection, but we DON'T want to have any Wangst...Oh! Let's just end it quickly and have Bob kill himself."
 * Lampshaded: Looks like this man... made himself taller. Yeaaaaaaaaaaaaaaaaaaaaah!
 * Invoked: Alice wants Bob's money, so she comes up with a plan to marry him and ruin his life in order to drive him to suicide.
 * Defied:
 * Bob considers suicide, but decides to get over Alice and not use a permanent solution to a temporary problem.
 * "Everyone hates me. I'm gonna take care of myself and live to be One Hundred and Eight, just to be spiteful. Think they can get ol' Bob to off himself eh? Well, I WON'T GIVE YOU F***RS THE SATISFACTION!!!"
 * Exploited: Bob kills himself...because his ghost is an extradimensional demon, and the only being that can legally kill Alice on purpose.
 * Discussed: "Maybe I only have one option left..."
 * Conversed: "Seriously, someone ought to found the Good Samaritans in that city or something".

There was a link here, but it was unfortunately Driven to Suicide.