"How foolish of you," The man whispers, his voice like silk to Arthur's ears. He leans closer, the length of his nose brushing briefly against Arthur's cheek, his voice finding purchase next to Arthur's ear. It's rich and soft, full of unsainted want, and it makes desire curl hotly inside of Arthur. "Walking all alone at night. So foolish. Someone might make you their dinner." FrUK
Eren comes along just in time to talk Levi down from doing something drastic and offers to take him in for the night. It's supposed to be temporary, or so Levi thinks, but Eren ends up being 50 different shades of nice and offers him a home under his roof.
Some monsters just don't want to be monsters at all. Some of them want to live seamlessly amongst humankind. But it's easier said than done, especially when their biology and natural instincts are working against them. That's why they have Erwin Smith though, and that's also why they gather around in a circle each week to discuss their problems with each other.