public static Person FindMatch(Person man)
        {
            int currentRank = 0;
            while (!man.IsMatched())
            {
                Person woman = man.Preferences[currentRank];
                //if that woman is not matched, match them
                if (!woman.IsMatched())
                {
                    man.MatchWith(woman);
                }
                else if (woman.GetRank(man) < woman.MatchRank)
                {
                    //replace the current match with this
                    Person replaced = woman.CurrentMatch;
                 //   Console.WriteLine("Deleting " + replaced.Name
                //        + " loves " + woman.Name);
                    man.MatchWith(woman);
                    replaced.CurrentMatch = null;

                    return replaced;
                }
                currentRank++;
            }

            return man;
        }