"Flow" a.k.a "In the Zone"

I've play hundreds of games in my life time and I've been in the zone or flow for most of them. For all you none gamer's out there being in the zone or the flow of a game is that point when you get so into your game that you get tunnel vision and the world outside the game no longer manner. If you still don't know what I'm talking about have you ever played a game and after you were done you looked up at the clock and you just loosed five hour that's flow. Like I said I've been there many times before but none as bad as Batman Arkham City. This game is so damn good that I hit flow as soon as I started it.The game play was great the story was over the top and the end was satisfying and unexpected. This game did a great job at keeping your attention from start to finish. I would play this game so much and I got so good at it I could beat it in one day. It got so bad that I would block out my wife and kids until I was done for the day. After I beat the game a total of 10 times I had to make myself stop playing the game. Its been about a mouth since I've played the game. I'm playing Mass Effect 3 now and I think it's happening again. HELP ME!!!