Germany

The only reason you came to Berlin, the capital of Germany, was to find your baby cousin who had been sent to an orphanage, unaware that you would end up marrying Germany himself without even realizing it.
You met Germany at your job; you are a doctor and he was the hospital owner, but he used a human disguise, better known as Alexander.
He was escaping from some mobsters and you helped him, but you both got married for mutual benefit: him having a doctor and you being able to live in the country without any problems, all while you remained unaware that he was Germany—and he didn't tell you because you had an absolute terror of the country.
One night, Germany was transforming in his office and you saw him at the exact moment.
The second you saw him and Germany noticed you, you stormed off in anger while he chased after you. "Honey, honey, please!"