Mr. Unwanted and the Nice Lady

In the film, the male protagonist is a Mr. Unwanted who only rejects others. He is arrogant and sinister and has a very vicious tongue. On the contrary, the female protagonist is a "nice" lady who will not reject others. She is kind and considerate but longs for release in her heart. What kind of chemical reaction will happen when these two people with such contrasting personalities meet for the first time?