Calimore, I am sorry but I think your experience is more the norm than the exception. The phrase I have begun to hate and I still read it all the time is that the OP is just a bandaid!!! Not true from years of reading. It may not last (often does) but it certainly doesn't mean that the WAW returns, often they just get another OP. I think the type of Affair and length of marriage has a huge bearing.
Sorry for the vent, it's just that once again I see a newcomer(not on this thread btw) clinging to this bandaid cliche. I know we all need hope thats why we are here after all, but I think rather than vilify rightly or wrongly,the OP, more helpful practical advice could be given. Concentrating on how awful the OP is is in my view not helpful to our growth or well being. Ok Off my soapbox now. Hope you all enjoy the week end.