SpecialK:
It's sad but true. They lie to us, the OW, themselves, their co-workers, kids, basically everyone. It sucks, especially when it goes so against their nature as we thought we knew it.
I asked my H similar questions and he said she knew everything, come to find out that was BS. They hook up with a person that is a mirror of who they are at that momement. So if they are screwed up you can imagine the OW is just as screwed up. They don't have a good relationship, they fight ALOT, they do and say things to each other that your H wouldn't normally do.
Heck, my H told Sasquatch everyday he was moving out, getting a divorce and would marry her. Well he moved out (for four days) but nothing else happened. He never came home and told me about her, nor asked for a divorce yet he told her he did every day. Oh yea, they embelish how bad their life is at home, even when you are being a lighthouse. (For example, H got a huge bruise on his back from moving Sasquatch 500 lb couch into his 4 day love nest. Well I found it on his back when he got in the shower with me one morning (remember he was moving out in a day or two but I was none the wiser) and touched it and asked him what happened (I remember joking asking if he got screwing in the woods (didn't know about affair then either) he laughted it off. Days later I find a picture of H with his shirt pulled up and a picture of the bruise. Yup Sasquatch took the pic and H made up this sob story of how I did it to him!!!! So not true, but like I said he wanted to be mommied and she wanted to do it so it was a perfect opportunity to throw her off the trail of his own insecurities about what he was doing to himself and his family.) They paint a very dim picture and want to be mommied (at least mine wanted that, although I doubt he would admit it.) They breakup multiple times. Think of your worst high school relationship, and multiple that sitch by 1000 and you get an affair down! Yet at the time, they think this person is perfect

.
H has since told me that he knew he was hurting me, he didn't care, he wanted both lives. They build this horrible fortress around their hearts and won't let us penetrate it. They are hooked up with OW for the sheer excitment, adrenaline, hormormones, etc. It isn't love, it never was. H has told me he would just say things to get what he wanted, just like a 17 year old boy would do to get what he wanted. They have sexual dysfunctions with them too even if they blamed them on us!
Plain and simple, they just lie and it sucks.
Hugs,
Sassy
Do not anticipate trouble, or worry about what may never happen. Keep in the sunlight.
Benjamin Franklin