i will tell you, that with the example that i brought up in this thread, the husband has a feeling that his wife is looking to stray.
and it doesn't even have to do with me. before i met her, they were already having problems. i found out the first night when i went out with her co-workers, and she would tell us how she, "cares" about him, but isn't attracted to him, "in that kind of way" anymore. another woman there asked, "well are you two having sex"? to which she immediately replied, "oh hell no", lol. i admit that i laughed, but i felt bad for the husband.
they don't even sleep in the same room, and that i know for a fact.