In "How my brother Leon brought home a wife", Leon and Maria learn to love each other. There love is not easy though, and they must overcome difficulties that eventually bind them closer together.
I think Leon and Maria learn to love each other because Maria proves her devotion by overcome fears and hardship to live in the province, away from the city, and proves she is willing to stay strong and even suffer in a way to be close to Leon.
The tests and trials she must go though are effectively what bring Maria and Leon closer together than ever before.
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