Akumatized, Reveal, and Marinette

Marinette Dupain-Cheng in love with Adrien Agreste, finally decides to tell him the truth about how she feels. Adrien tells her that he loves someone else and can't return her feelings. She tells her parents and Alya. She spends a week in her room and doesn't leave. Her mother brings her food but she loses her appetite. So when she goes back to school, she is different and Alya gets Akumatized.

What happens to Marinette? How does she change? What happens when they found out they actually love each other the entire time? Will Marinette accept Adrien after what he has done?