Don't leave me Alone

This is my first story. I've no idea, how this is gonna turn out, but I'll try my best.

What if, Chat Noir gets rejected by Ladybug, and at the same time, Marinette gets rejected by Adrien? What will happen? Will they end up having feelings for each other?

SNEAKPEEK:
"Plagg! I am going to tell her my feelings!" Adrien said excitedly.

"Oh! That's a good news! Well, now if you are done with your excitement then please give me my one and only love, Camembert!" Plagg said teasingly.

Adrien rolled his eyes," You've already ate so many pieces! You are fully charged. We have to go now.
Plagg, claws out!"

"Nooooooo-" Plagg was sucked into the ring. Adrien transformed into Chat Noir and took the bouquet of roses, he had bought earlier for Marinette. He landed onto Marinette's balcony with the bouquet and a pink rose in his hand, but to his surprise Marinette was not there.

"Strange! Where is Marinette? II told her to wait here."

He opened the trapdoor and stood in awe, at the sight which he saw. Nathaniel was kissing Marinette and she actually kissed back. He felt his heart shatter into a million pieces. Ladybug had broken his heart many times, but he was hurt more than ever when he saw the scene.

He left the bouquet in Marinette's balcony and then went away to the top of the Eiffel Tower, still holding the special rose.