It's just meant to be

Archenemies, perhaps
Friends, not so much
What will it be of these two!
So much fighting, so much complaining
Why is it so hard to just get along?
What if it's meant to be?
These two haven't killed each other for the sake of their destiny
Perhaps, it will happen quickly perhaps it never will, who knows?
Read to find out what happens to our pretentious mechanic and our arrogant surgeon