Basically, in the third chapter, Adrien and Marinette as heroes meet on top of the Eiffel Tower, and talk about Chat Noir's identity reveal. After seeing more of her awkward behavior, Chat states he is worried that Ladybug doesn't like Adrien, and thinks he is superficial. Ladybug says she thinks nothing of the sort, and is only surprised that he was Adrien all along. Chat is relieved, and says that then everything should just go on as normal. Ladybug has mixed feelings on this, but decides it is probably the best option for now.
In the fourth chapter, as time passes, Marinette's crush on Adrien affects her work as Ladybug and working with him as Chat Noir. Every time he flirts with her, or does something remotely romantic, she gets nervous and messes up while fighting, even with her powers. Eventually, Chat notices this and worries that despite her words, his identity has caused some sort of issue. He gently confronts her on this after a battle, and Ladybug decides it may be better to just tell him the truth, about liking him and her own identity. They have another private meeting, and Ladybug tells Adrien that she developed a crush on him after reading a fashion magazine interview where his answers were very sincere compared to other models. Marinette normally wouldn't get an intense crush on a guy, or a celebrity, without knowing they were a good person, so the article really stood out to her. Adrien is very surprised, and embarrassed by her honesty, so he is taken aback rather than use it as an opportunity to tease. Also, he is in a state of awe that Ladybug likes him. Then, Marinette reveals her identity, surprising Adrien, and the fic ends there with maybe a small cute epilogue scene with Alya and Nino after.