You're obviously young or have very little life experience. Before making such a ludicrous (and unfound) statement, go read some of the infidelity message boards and see the bullsh*t most betrayed spouses have to go through in the course of reconciliation - while the wandering spouse acts as though nothing's changed and they go right on their merry way. The betrayed has to deal with so many devastating things like trickle truth, triggers, wondering if their entire marriage has been a farce, etc. etc. etc
see the review