Thank you for your kind words, raven song.
With regard to my partner's porn use, he was always secretive about it. It's just that I discovered in the internet history very early on. After each discovery he made sure he would cover his tracks better but it was obvious to me he was using porn because he would watch it when he assumed I was asleep so he'd have the door shut on the computer room (but not at other times) and then I'd find that the internet history was completely erased. This was when we had a shared computer. The other giveaway was his obvious lack of interest in sex for weeks at a time, and I'd always have to initiate. At one point I grew so impatient with his secrecy that I tiptoed quitely, opened the door and caught him in the act. My big regret was saying that if I caught him again I would insist on professional help. The problem was there was never any evidence to find so I never enforced that condition. I thought I needed 'proof' but I could never find any. In hindsight, I shouldn't have needed evidence. I should have just insisted on getting help, that was my big mistake and my big regret.
You see, I *knew* he was using porn throughout but he made sure I couldn't discover anything. Eventually we had our own computers and I never touched his. I knew there would be no point. I knew he had his browser set to delete all history and cookies on quit and that's what he always did on the occasions when I would open the dreaded closed door at those times. So I was effectively powerless. And of course, we never had sex. That became our 'normal' of course it affected me, but I'll come to that later.
Some time previously I could detect a shift. He'd had a lot of work stress and he was worried about losing his job during a takeover, and when he didn't, he didn't like this and he didn't like that, yet at the same time he became very work-obsessed, almost like a workaholic. He would complain about work all the time, which I expected would pass when he was more settled in his job, but instead it just intensified. I couldn't stand it. Who wants to listen to two hours of moaning and complaining every evening? I felt he was being unfair to just use me as the one to dump his crap onto and give me nothing in return. No "thank you for listening" or anything like that. Then, I don't know why, I felt a shift. I wondered at one point whether he was actually infatuated with a new coworker but now I'm not so sure, but something was off. It may also have been his addiction progressing as he said the last year was particularly difficult although he's never specified what that meant. In truth, I don't know. I suspected infidelity at one point but I could say who/when/where. All I knew is that at about six months before d day there was a definite feeling of something not being right. I still don't know what or why I felt that way.
It was the continuation of that feeling of unease, that sense of increasing emotional distance, that continued grumbling on in the background like a gnawing toothache. His porn use was still 'business as usual'. This was how it was right up until d day.
D day wasn't a 'discovery' day as it is usually defined. My d day was more like 'disintegration day'. I couldn't take it any more. I was so distressed by the emotional distance between us and I felt as if I was waiting for my fate, that I would be dragged down further only to be told by my husband that it was over, he wasn't happy anymore, maybe he met someone, or maybe not yet, but I just saw misery ahead and I wasn't looking forward to that outcome. But I felt I had no choice. He'd effectively ostracised me from that part of his life.
Another factor was whether I was prepared to accept the possibilities of infidelities if they were kept secret, that I would have to tolerate that situation in the same way that I'd lived with the porn. I didn't agree to it. I didn't want it. But he wasn't considering my feelings or the impact it was having on our relationship. Bearing in mind we'd had a sexless marriage for years, because he wanted porn instead. But I suddenly realised, Fuck no! I'm NOT going to turn a blind eye to whatever else he might do in the same way I've tolerated the porn. No fucking way. I couldn't bear having to live like that. But the thing was, I was so fucking weak by that time, physically and emotionally. 15+ years of porn addiction. A husband that treated me like a leper when it came to physical intimacy, and the worse of it all was that I blamed myself!!! Yeah, that's right. Classic partner of a PA, but I had it so fucking bad I'm shocked when I look back. I was in a depressive breakdown. I couldn't take it any more. I couldn't take the porn. I couldn't take the emotional isolation. I felt as if I was waiting for the fate he was going to decide. Classic learned helplessness.
That's what it took for him to quit. I don't think that porn was filling the void for him any more. That is probably part of the reason why I sensed things were off, why there was greater distance between us. I don't know whether things were escalating. I don't know if he acted out in other ways. He says not. On the balance of probability, I'm prepared to take accept what he says at face value but with some reservations. For example, I don't rule out visits to strip bars or some kind of sexual entertainment. Disclosure wasn't forthcoming. Almost everything I learned after d day came from my own investigations of all his computers and phones, etc.
I hope this answers your questions. The only thing I would say to any partner of a PA is to draw your boundaries with clear lines. I had none. Fuck! I was even considering what else I could tolerate/pretend wasn't happening for the sake of his sexual entitlement whilst sacrificing my own sexuality to the point of obliteration. That's not normal! That's not healthy. It's a recipe for misery. That's how weak my boundaries became but that's how the shadow of porn addiction progresses for partners. So know where you are drawing your boundaries and make sure you don't allow anyone to cross them.