After my wife's affair we carried on. I tried to forgive her. We moved house, moved towns, she quit work, I worked more. We bought a house, the one she wanted. I bent over backwards to make her happy and to put the past behind us.
But.... It was always there. If she was late home, my mind would race with ideas of where she was. I couldnt move beyond my suspicions, suspicions I never voiced.
I got so bad that when she got a job, every extra shift she did I would torture myself, wondering where she was, wondering who she was with.
I had a break down. It left me broken.
After 12 months of living in hell I left her. A few night in hotels, a night here or there on the street, a night spent in the office reception on the sofas "working late"
Eventually, life settled, things moved on, I met my current gf, now things are better. Still that suspicious voice in my head shouts, I ignore it as best I can and never give it a breath of air from my lips.
So, in my opinion, trust that gets broken can never be repaired, patched, ignored, faked, but never ever repaired.