Mini console program: rock paper scissors

sup, so just started to code and made this little console thing If any of you wanna help me learn any of the c languages i shall love marry you, and give you wine and women any way heres the code:


using System;
using System.Collections.Generic;
using System.Text;

namespace RockPaperScissors
{
class Program
{
static void Main(string[] args)
{
Console.Title = "Rock Paper Scissors";
string userChoice = "**&&**";
int computerChoice, loseCount = 0, tieCount = 0;
bool QUIT = false;
double winPercent = 100.0, gameCount = 0.0, winCount = 0.0;
Random computer = new Random();
Console.Clear();
Console.WriteLine("ROCK PAPER SCISSORS");

do
{
Console.Write("Enter choice, or enter QUIT to quit: ");
userChoice = Convert.ToString(Console.ReadLine());
++gameCount;
if (userChoice.ToUpper() == "QUIT")
{
break;
}
computerChoice = computer.Next(1, 4); // 1 is Rock, 2 is Paper, 3 is Scissors

switch (userChoice.ToUpper())
{
case "ROCK":
if (computerChoice == 1)
{
Console.WriteLine("You chose {0} and the computer chose Rock. It was a tie!", userChoice);
++tieCount;
}
else if (computerChoice == 2)
{
Console.WriteLine("You chose {0} and the computer chose Paper. You win!", userChoice);
++winCount;
}
else if (computerChoice == 3)
{
Console.WriteLine("You chose {0} and the computer chose Scissors. You lose!", userChoice);
++loseCount;
}
break;
case "PAPER":
if (computerChoice == 1)
{
Console.WriteLine("You chose {0} and the computer chose Rock. You win!", userChoice);
++winCount;
}
else if (computerChoice == 2)
{
Console.WriteLine("You chose {0} and the computer chose Paper. It was a tie!", userChoice);
++tieCount;
}
else
{
Console.WriteLine("You chose {0} and the computer chose Scissors. You lose!", userChoice);
++loseCount;
}
break;
case "SCISSORS":
if (computerChoice == 1)
{
Console.WriteLine("You chose {0} and the computer chose Rock. You lose!", userChoice);
++loseCount;
}
else if (computerChoice == 2)
{
Console.WriteLine("You chose {0} and the computer chose Paper. You win!", userChoice);
++winCount;
}
else
{
Console.WriteLine("You chose {0} and the computer chose Scissors. It was a tie!", userChoice);
++tieCount;
}
break;
default:
{
break;
}

}
} while (QUIT == false);

if (gameCount > 1)
{
Console.Clear();
Console.WriteLine("Giving up?");
Console.WriteLine("{0} game(s) played. You won {1} game(s). You lost {2} game(s). {3} game(s) were a tie.", gameCount, winCount, loseCount, tieCount);
winPercent = (winCount / gameCount) * 100;
Console.WriteLine("You won {0:f2}% of the games you played.", winPercent);
Console.WriteLine("Thanks for playing!");
Console.ReadKey();
}
}
}
}