In order to describe Paul's love life more delicately, he changed tonya's family background and changed tonya's father from a bureaucratic forestry official to a neutral doctor, and he was an upright doctor, almost half a Bolshevik. Not to mention the rationality of this plot, such changes at least blur the class relationship between tonya and Paul, and make the breakup between Paul and tonya unclear.
It is suggested to read a book, which is made into a film and television, weakening the original idea and increasing personal understanding. When you go to the movies, you just see what others think of books. Therefore, reading by yourself will give you the truest feelings.