Go to some Gamblers Anonymous meetings, OP. We cannot tell you how it is going to be, because you need to hear it from people who have been there
You are minimising and excusing him. You say you can't bear your child to grow up in a house without its father. If it was up to its father, that house would be mortgaged out from under the child to feed an addiction
Payday loans...seven of them ? That tells me there is serious lack of impulse control. You cannot stop him, you cannot control him, you must take no blame.
These are his choices and you are lucky so far. Sweep it under the carpet, you will regret it. Micro managing him for the rest of his life is not the answer. Taking away his privacy, once the shock has settled, will make him resent you and slowly kill your respect for him that you have to control his impulses like a toddler.
He is a practised liar, OP, and a few crocodile tears are not going to change that. I see nothing in your posts about how he is taking responsibility for himself
As it stands, you are shouldering at all and he is the cowed little boy (for now)