C++'s reference type antagonizes ontological clarity

Readme.md

$ g++ reference.cpp && ./a.out
num1: 0, num2: 0
num1: 1, num2: 1
num1: 2, num2: 2

reference.cpp

#include <stdio.h>

int main() {
  int  num1 = 0;
  int& num2 = num1;
  printf("num1: %d, num2: %d\n", num1, num2);

  num1 = 1;
  printf("num1: %d, num2: %d\n", num1, num2);

  num2 = 2;
  printf("num1: %d, num2: %d\n", num1, num2);
}