Mobile Suit Gundam Wing/Heartwarming

"Relena: Heero... finally, it's over."
 * Gundam Wing: In the next-to-last episode, as Heero prepares to go out and fight Big Bad, Relena begs him not to go, fearing that he plans on attempting suicide in battle (he spent a good portion at the start of the show doing such). Heero responds by pulling her close, looking her in the eye, smiling, and explaining that This Is Something He's Got to Do Himself, finishing with "But I promise you, I will come back to you. So please, believe in me." As he returns to battle, she quietly responds: "I do believe in you."
 * There's also
 * In Endless Waltz, Heero passes out from his injuries. Relena runs to Heero, catches him in her arms, and comforts him.