Do you see the lack of understanding here? It's like if men complained about "no sex" in a M and then proceeded to get into an A "for sex" with a nun (who, in fact, will not have sex with him and has made that 100% clear). Well, what the heck?! If you complaint (not you, the WS) is "not enough housework" then you haul off and have an A with someone who's gonna do 0, ZERO, housework?
I get why you're confused RIO. The "for sex" A is a little more straightforward, so the logic is easier to follow. In my experience, men tend to seek the most straightforward answer that will give them the fastest results in that given moment, which is why the "for sex" A seems to be more common for them. I'm not having sex? Cool, I'll get it elsewhere.
But women think so much differently. I'm not wayward. But as a woman I can see how the sex "transaction" plays out in my mind, and I can directly relate it to a wayward thought process. Like what Hickoryapple wrote about not wanting to feel "used for sex." I know you don't get it, you've said you would LOVE to be "used for sex," but on the whole, most women just don't want that.
Imagine this scenario re: housework:
I am unhappy because my husband is not doing his fair share of the work around the house. I have a job and I work just as much as him. I contribute half of our joint expenses. And yet somehow I do the lion's share of the chores, arranging the kids' schedules for sports and doctors appointments, grocery shopping, making meals, staying on top of the kids' homework etc.
I've tried to ask him for help with this, but he just keeps forgetting or telling me he doesn't have time. That to me shows that he just doesn't think these things are important. If I don't do it, it doesn't get done. But, this just doesn't make sense to me. We both bought this house, so it is equally our responsibility to maintain. We both made these kids, so they are equally our responsibility to take care of.
He has hinted to me that if we had more sex, maybe he would do more things around the house. That makes me feel like he sees my body as compensation for doing something that he should be contributing to half of anyway. Yes, I want more help around the house. But I don't want to give up my body to convince him to do those things. He should want to do them anyway, because he is just as much a part of this marriage as I am.
So for the faithful spouse, this is as far as it goes. They might withhold sex because of these feelings, they may even masturbate to compensate when they are horny but don't want to give in to the spouse on this because it feels "icky" to feel like it's a transaction. But they don't have an A.
But if I were to be the WW in your scenario who is upset with her BH for not doing housework, this would be my thought process after that:
I would rather go have sex because I "want" to, not because it is a transaction to get my husband to do something that I feel he should be doing anyway.
No, I would not be "getting" the thing that I am upset at my husband for not giving - the housework/help with the kids. But my husband has made it clear that my way of "getting" that thing is to use my body as a bargaining chip. I would rather use my body in my own way than for that.
So what I would be "getting" out of the A is not the direct thing I'm upset about, the housework. I am "getting" revenge for you not doing the thing I feel you should be doing. I am also "getting" the feeling that the AP just wants to have sex with me for me (as misguided as that is). It's back to wanting to have sex just because I want to, and not as a transaction to get something done that I feel my H should be doing anyway. Hell, she could feel unappreciated for all of the work she does, and feel like she "deserves" the attention, another completely misguided notion, but one many have fallen for before.
I'm not defending the wayward mindset at all. It's totally f&*!ed. A lot of men do it because they feel like they "deserve" it in some way too, and that's equally as messed up.
I guess I'm just saying the female perspective, whether wayward or faithful, is complicated. Much more complicated than "I'm having the A for sex."
I'll tell you - minus the A part, these are the exact feelings I had about my H when it came to the household stuff, and I'm the BS. If he told me that I could get him to do the household stuff by having sex with him, that was an instant non-starter. I did not feel comfortable with sex being a bargaining chip. I would have rather masturbated than to feel used like that. And ultimately, masturbating was the healthier choice rather than having an A. Communication would have been even better.
In both cases, the faithful wife, or the one who is thinking about having an A instead, the wife should be communicating these feelings with her husband better. But the person who chose the A picked a much "easier" way out in the short term because they just didn't want to deal with it.
And there are a ton of other reasons that someone might have an A, of course. This is just one very specific scenario.