North Italy and Germany have a massive fight and breakup. At first South Italy is pretty happy, he and his brother can spend some time together without any Germans around. Then he realizes GerIta aren't falling all over each other within days like usual. And his brother is equal parts sad and annoying. South Italy begins to hope Germany will be back soon. He isn't. So South Italy decides to interfere to get them talking again. His sanity depends on it. Nationverse or AU doesn't matter to me.

Bonus: He actively feels bad for Germany and has a stunning realization he isn't THAT bad of a guy.

Bonus 2: Spamano

Bonus 3: Other people start helping him because they can't take the tension at EU activities.