After all

Will always loved his bestfriend, Mia. They have been friends since they're kids . William is two year older than Mia but their relationship as besties was pretty great. Will even promised Mia that he will marry her when they grew up. Such a stupid idea but as kids, that was cute. William was a hardworking kid. He never disappointed his parent, who want him to become a doctor. William was always a top student in every grade .Meanwhile Mia is the total opposite with him .
Will's parents forced him to study a lot. Although Will is so weak , he tried his best to become a perfect child , which his parent always hoped for. As the time passes, Will's feeling for Mia has changed. He fell in love with her without even realizing. Will's parents want him to study abroad. Will obey them without any complain. While Will is away, Mia fell in love with a local police officer. After 7 years apart, William finally came back as a doctor. As he promised, he wanted to marry Mia.
Meanwhile Mia was depressed as her 5 years relationship has ended. She cried for months until Will came back into her life. She thought that he's going to heal her until she heard that he proposed her family to let him marry her. After countless rejections, she finally agreed to marry Will.
How would they end?