Hi Ready...I hope I can offer some input.

Firstly, I am sorry this has happened to you. I know this must be painful. But at the very least he did decide to tell you. That doesn't make it okay by any means, but I think that indicates that what he knows what he's doing is wrong and is making an honest effort to stop.

That being said, it can and is an effort. It's not uncommon among men to start looking at porn at a young age, typically around puberty. "Quitting" entirely takes a tremendous amount of discipline and self control. It can be very easy to "drift" while online, until that initial google search for whathaveyou becomes a stop at a porn site. This isn't necessarily a matter of him wanting more sexually or infidelity or etc, it is an addiction.

I will keep you both in my prayers. I would offer, though I'm not in exactly the same situation as you, that you can feel free to send me a PM if I can be of some help.