There are positives and negatives from having a "no sex yet" emotional affair.
The negatives are that (and excuse me for a bit of levity) you probably imagine he can breathe through his ears for hours , discover your G-spot in an instant and produce multiple orgasms without breaking into a sweat. The reality however might be that he farts after he comes, suffers a bit of guilt-induced drooping and the whole experience is less than satisfactory because he doesn't yet know your body or what works for you.
I'm not in the least bit surprised that these relationships have taken on epic proportions, since the greatest erogenous zone is in our minds and our imagination. However, from a very analytical perspective, if sex is important to you, making a decision about committing to someone whose sexual compatibility is unknown, is madness. I can just about understand how people with strong religious principles make those decisions before a first marriage, but in deciding whether to disrupt a 30-year relationship and the childrens' lives, I can't see that you're in possession of all the facts. However, I understand your thinking and I'm relieved - because this makes it easier somewhat.
No-sex affairs are often much easier for men to handle. They very often get far more hung up about sex - and women get more hung up about emotions. Again though, this isn't biological, just conditioning.
You might think that the disclosure of any kind of affair would be the absolute deal-breaker, but if you truly believe your husbands love you, in all probability, this won't happen. Like Counting, if you'd asked me (or my husband) what I would have done on disclosure of his affair, we would both have said I would have called time on the marriage. I on the other hand believed that if I had been the one having an affair, my H would have forgiven me. He agrees that this would have been the case - and without going into too many details here - he once thought I might be, and decided he could live with it as long as I came back to him.
When faced with infidelity, I have concluded that no-one really knows what they would do until faced with it. I think you know what you would do if heaven forfend, there was a next time, but that's more to do with having seen the pain the first time round and doing it again - that would smack more of creating a deliberate hurt.
One of the reasons too why people don't disclose infidelity is because they realise that having done it once, the taboo has gone and it will be much easier to do it again. Going undiscovered means never having to face up to the pain it causes, so it makes it easier and easier to do it again - and sometimes, people want that.
If frightened of disclosure, try the 80%/20% rule. 80% of our fears never come to reality - so we have to work out whether for the 20% that do, we can live with the consequences. For someone like Silver who doesn't think her marriage can survive anyway, it appears to me that she thinks she can live with the consequences.