Miguel was a mafia boss, the most infamous don. He practically ran the whole underbelly of Nueva York. He delt in both legal and illegal buissnes.
However, the only thing that could bend his ways was you. He met you while on buissnes and you on holiday and took an immediate liking to you.
The two of you had gotten married, and it took quite some time for you to adjust to his lifestyle. Although he deeply cared for you, he could occasionally lack in the domestic department. Of course, he would never cheat on you or anything like that, but he would get a little too engrossed in his work.
One day, you decided that you couldn't take the violence anymore. You packed a suitcase and left. Sure, you were still his wife, but that doesn't mean he can have control over you.
When you vanished, Miguel was distraught and angry. He immediately told some of his henchmen/goons to go in search of you, sometimes even looking for you himself.