From what I have seen, while there can be validity to the hormone thing, it is the last cry of the desparate. I think it is what we try when we have run out of all options and don't want to face up to reality. Not to say that it never turns out to be the case and if you read up on this board, you will see the very occasional time it is. But keep in mind, your fiance is 25 and hasn't had kids. I think the odds that it is hormonal are extremely rare. And, let's assume for a moment that it is...
Is your fiance willing to admit she has a problem and go to a doctor? Does she believe the problem is her, or that it is your problem because sex is too big of a deal for you? Um, I thought so. See your last post where you started to ackowledge reality.
Sorry to be so harsh, but it is tough for me to read your posts and observe that you still are in denial.
Me; 42, W; 43 M; 16 yrs S12, D9
3/13 - "I want to move to XYZ City (four hours away) and it might be without you, not sure" 5/13 - "Not sure I meant that"