Heart of a Girl: Standalone sequel to Girl of Averages

A standalone sequel to Girl of Averages

Poor Mark Walters.
His story starts with a stupid plan to prevent the most wonderful girl falling in love with him.
But now, living in a world crumbled around him, only a girl in love with him can take him out of his mess.
Enter Mia Carpenter, of Boston, his younger sister's roommate and best friend. This beautiful college girl falls in love with the lonely young man. She moves into the sister's room in their palatial mansion, to have access at all times to him. Mark's family members support her, because they can see how good she would be for him. She will take him out of his misery, and all she has to do is get him. Should be easy for a girl so beautiful.
But it's not easy to break him out of his shell.