

right but the norm is already changing on so many other issues why is this an exception ?
Cause this change is actively immoral and harmful and people don’t want it, duh.
Things change because people want them to change. They don’t want this to change because they don’t want to enable potential cheaters in their lives, because as something becomes less socially stigmatised the less of a barrier there is to actually doing it.
Source on that, also even then, the ones who are prove the statistic to be quite reliable. See here for the effects on both the cheater and the victim.
Considering the effects on the victim (suspicion even on non-cheating partners for years) you actually don’t deserve a second chance, even if you were on the straight and narrow for the rest of your life.
It’d be like you intentionally smashed his kneecap then stayed with him out of guilt to help him walk.