I Want My Beloved to Be Happy/Playing With

Basic Trope: A character decides to stop pursuing another romantically so they can be with the one they love.
 * Straight: Bob and Charles are in love with Alice. Once Bob realizes she really wants Charles, he stops pursuing her so she can be happy.
 * Exaggerated: Bob, Charles, and a bunch of guys down to Zeke are all in love with Alice. Once they realize she loves Zeke, they all step back and let him have her.
 * Justified: Bob's hoping that Alice will see him letting Charles win and fall for him instead.
 * There are factors besides Alice's feelings that make Charles more suitable partner. Perhaps Bob has a painful addiction or anger issues. Maybe Charles is rich while Bob is poor, and thus can provide for Alice better. Or maybe Bob's leading a life of crime and doesn't want Alice hurt.
 * Bob cares more about Alice's happiness than his own.
 * Inverted: Murder the Hypotenuse; If I Can't Have You
 * Subverted: Bob appears to step back and let Charles declare victory, but when he and Alice are alone, he starts trying to woo her again.
 * Double Subverted: ...Turns out they were just rehearsing a play. Bob really did give up.
 * Parodied: Both Bob and Charles try to pull this, and they get into a knock-down, drag-out fight as to who gets her.
 * Zig Zagged: Bob steps back and lets Charles get Alice, but hits on her when they're alone. Then it turns out they were rehearsing a play. But the reason Bob's performance was so heartfelt was because he still loves Alice...
 * Averted: Alice makes it clear from the get go that she's only into Charles.
 * Enforced: "Alright, this harem anime is getting close to the end. It's time for Alice to pick her suitor."
 * Lampshaded: ???
 * Invoked: ???
 * Exploited: Pretty much the same as Justified, actually - Bob steps back, specifically so Alice notices and chooses him instead.
 * Or Alice/Bob wants to leave their partner (for any reason, ethical or not), so s/he use Bob's/Alice's behavior to separate without much trouble.
 * Defied: Bob tries to Murder the Hypotenuse.
 * Alternately, it ends in a One True Threesome.
 * Discussed: "Bob is by far the better choice for Alice. After all, he is willing to give her up just to make her happy!"
 * Conversed: "We must be getting to the end of this romantic comedy, because it looks like Bob's about to throw in the towel."

Listen, I've enjoyed my time with you, but I know where your heart longs to be. Go back to I Want My Beloved to Be Happy.