If it was not for Sara, she would be him now. His girl lost her life to protect her but she was alive, happy with her partner. And destiny was an interesting thing, who would have thought Sara would end up being his sister in law.
Mike was the fraternal twin of Michael, after losing contact with his brother few years ago, he was looking up for him without telling his mother. He knows that she hates him, more than anyone. For past years she didn't even mentioned his name.
Eventually he started to forget that he had a twin brother who used to spend time with him in the past. It was all good until his mother asked him to marry Lina, even if she knew that he will only love one girl in his whole life and that marrying someone else and making her happy he can't.
He was always looking for the one because of whom his girl died so painfully. He wanted to take revenge for her, but he never saw or knew her until he got the message.