What Heywyre said is also true of me. I found that in my sitch, by staying, forgiving and working to make things better I grew stronger in my H's eyes, he respects me even more now because I didn't cut bait. Prior to finding out about my H's infidelity I would have sworn I would never have stayed, but I did...because in my heart I wasn't finished.
But that's us, everyone is different. We all have to do we feel is right for US and not worry about what is right for everyone else.