Welcome to PsychCentral!

I'm sorry you are enmeshed in this most difficult situation.

I don't know a lot about internet porn & sex addiction. But I've read enough posts on the subject, here on PC, to know it is an extremely difficult thing to have to deal with.
What I do have too much personal experience with is anxiety, paranoia, anger, & depression as well as hiding an important part of yourself in a marriage. I'll spare you the details.

But suffice it to say I've been doing it for the better part of 38 years. I know what a toll it can take on a person & how exhausting it can be.
I hope you find the time you spend here on PC to be of benefit. The more you post, & reply to other members' posts, the more a part of the community you will become. Plus there are the live chats you'll have the opportunity to participate in, once your first five posts have been reviewed & approved. There can be a lot of support available here on PC.

It's really up to you how much time & effort you wish to put into it. I wish you well...