That wasn't me, but she didn't do any such thing - she was saying that due to the differences between men and women at the statistical level in various aspects of life, you couldn't do a straightforward 'gender reverse' of this issue, as who does what to who lands differently depending on the genders, in the same way that people have always said "'dog bits man' is nothing, 'man bites dog' is headlines" - it's a well known aphorism. She wasn't saying that women who like sex are like dogs who like biting men or whatever the hell you've taken from it!
I don't necessarily agree or disagree that sex reverses are never valid - but I feel like a sex reverse doesn't work in this case because men don't experience pregnancy, childbirth or breastfeeding, all of which play a pretty obvious role in the very common diminishment of libido a lot of women experience while nurturing small children. So in this instance, the sex of the OP and her partner is completely relevant and integral and can't be straightforwardly reversed.
Sexlessness (and once a year is classed as sexless) by whom? Is someone who has only had sex once still a virgin by this mysterious classification system you have invoked?
What's harmful and unreasonable is to shut your partner down and make no effort to try to find a solution between the two of you, and claim that trying to reconnect intimately makes the wife a "sex puppet".
I'm not saying he is behaving like that, I'm saying all the people who are saying 'go to the GP, got to a counsellor, get your low libido fixed' are treating her like a broken sex puppet - because her low libido is not a medical problem, it's a normal biological phase. It is a personal problem between her and her husband and they should definitely work on it together to find a compromise they can both live with. If you read my posting history, you will see I have been in the same position and reached an accommodation with my partner. But this doesn't have to be predicated on the OP being at fault and in need of 'fixing', it's blaming and unpleasant. Their normal sexual fluctuations are currently misaligned. That is a problem they need to work on together.
If he wanted a sex puppet, he'd have been happy when OP pulled her knickers down and told him to get on with it. Instead, like a normal loving and sexual human who cares for his wife, he found it utterly soul destroying. Because it is.
And yet, from what OP has said, he still went ahead and did it. When he cannot possibly have been under any illusions that she wasn't totally reluctant. How soul-destroying do you suppose that would have been for the OP?
As I have said, he is not unreasonable to raise it. But also from the OP (and we have nothing else to go on so please don't provide 'I bet' in lieu of what she has reported) he hasn't brought it up before in the past four years. Then one night he states he is unhappy and suggests counselling and she is initially resistant (as many of us would be to a new, unexpected change in the status quo); the next night he says he wants an open marriage. So I'm afraid I'm not quite so fawningly in awe of the DH as so many of you on here seem to be. I think he could have raised this problem a damn sight sooner and a damn sight better.