idealogically opposites fall in love

Hai all..

My request may seem very routine for you. but please read once what exactly i am looking for. 

ML and FL fall in love with each other though their idealogies clash each other at first.

For example..

Optimist falls in love with pessimist.

Athiest falls in love with scientist.

Just like this.. i want the story should follow like this..

At first they clash each other..they differ theri opions..they argue and fight with each other..later on they fall in love..

thanks in advance.

I have a list: https://kisskh.at/list/4a6b9jm1