What happens when you don't follow these rules? What happens when you continue to eat and make the same nutritional choices you were before you started training? Remember those same choices that got you to sign up for the gym in the first place.
Nothing.
You stay the same. Things get worse. Or your progress is slow...snail pace. And that is not what you want. You've made the decision that you don't look and feel your best. You're constantly tired, you lack energy, you're weak and easily get out of breath. Now you're training 1,2,3 maybe 4 times per week- great, but nothings happening, you see no significant changes to your body.
If something isn't working you change it. But most of the time we lie to ourselves. If I smash my head against a brick wall it hurts! Lesson: don't smash your head against a brick wall it will hurt. It doesn't matter how many times I tell myself it feels good it's hurting me. So I never do it again. If I eat a whole bag of potato chips, tub of ice cream, pasta, pizza, deep fried chicken and drink soda on a regular bases I will be fat! Lesson: don't eat a whole bag of potato chips, tub of ice cream, pasta, pizza, deep fried chicken or drink soda you will be fat. It doesn't matter how many times I tell myself it tastes soooo good, it's hurting me. So never do it again.
Just because you're spending 2hrs in the gym doesn't mean you can treat your body like dumpster. There are 168hrs in one week, spending 2 of those in the gym will not make up for the other 166 spent sitting in your car, on the couch, in bed or at the kitchen table. You cannot out exercise bad nutrition. That bears repeating YOU CANNOT OUT EXERCISE BAD NUTRITION.