It had been him and Nina that had decided years ago. Now it was her who had to clean up their mess.
or
It had been he and Nina that had decided years ago. Now it was she who had to clean up their mess.
Which is correct
It had been him and Nina that had decided years ago. Now it was her who had to clean up their mess.
or
It had been he and Nina that had decided years ago. Now it was she who had to clean up their mess.
Which is correct