Itsall
I cannot tell you how strong the 'need to know' became for me. Our issue was internet sex, not an affair, but I didnt know even that, although I knew the computer was involved, as I kept finding photos in his received files (about 5 times in 5 years). I suspected an affair, and worse.
At the beginning I allowed myself to be persuaded that they were accidentally downloaded from torrent sites with music files, but as time wore on enough others issues developed between us.
Also, we got into that common pattern where couples have a problem, where one 'withdraws' in some way, and the other 'pursues.' (Useful link here
peterfox.com.au/fidelity_1.8.html). I do not mean sexually.
I am strong and independent, and I cannot believe that I did not draw a line/suspect more strongly for so long. The last 6 months, my suspicions accelerated and I confronted him about a number of issues, and even threatened divorce, but he denied all still- at one point he really understood my reasons and need to know, but still denied it, although I had said I would leave him if I was right and found out later.
IN the end, what happened to me was that I found new photos three weeks after a serious attempt on both parts to improve our relationship, and I was gutted. I put my first thread on mumsnet asking for advice and learned from others here that it was practically impossible for him to be telling the truth. WE argued/discussed for three days, and he made ludicrous attempts to start downloading into received files to 'prove' it could be done.
Finally, I moved into the spare bedroom, stopped looking, and it really freaked him out. An email I had forgotten about weeks earlier to relate came back the next day by luck, and we booked a session. And after three weeks he told me.
I dont know whether any of that is helpful. I had tried every strategy in the book to catch him out and failed. It had become 'cat and mouse' all the way, and I had turned into some kind of private detective in the last few weeks, ie, as secretive as him!
Lots of people on here kept saying to me, why wait, you have enough evidence. But I couldnt hear it. I really, really needed to know.
I dont know if any of that is helpful. If you need to pm me for a couple of weeks for tips, feel free.