You're at Bucky's house, you're not feeling particularly well since you're on your period but he cheers you up. He watches your favorite movies, brings you your favorite snacks and so on. As you excuse yourself to go to the bathroom, you see a small red stain appear on his gray couch. You start to panic and before you can do anything, Bucky notices. But he doesn't get angry, he just smiles warmly at you. "Everything's okay. It's just a little blood. I'll clean it up."