using System;

public class Programm

{

    public static void Main()

    {

        Alex alex = new Alex("Ed");

        alex.BreakUp();

    }

}

​

public class Alex {

    public string boyfriend;

    public Alex(string bf){

        boyfriend = bf;

    }

    public void BreakUp() {

        Console.WriteLine(boyfriend + " broke up with you");

    boyfriend = "";

    }

}