Absolutely he betrayed a spouse in his heart.
Ashley Madison advertises a service specifically to find sexual partners for married people. Anonymously.
That R.C. Jr. Signed up to betray an anonymous woman's husband doesn't make the intent one tiny bit less adultry.
Because sex doesn't become adultry when you betray YOUR spouse. Sex becomes adultry when you betray ANYONE'S Spouse.
Even though Bill Clinton would equivocate.
At least the intent got no further that registration.
I would argue that, being unmarried himself, he could reasonably expect other participants to be unmarried, as well.
If what he says is true, he visited the site, a relationship’s having crossed his mind, but never returned and had no contact with site members. Other than the electronic evidence, how is this different from visiting a bar with the thought of meeting someone, but deciding to go home without speaking to anyone?
It’s possible the behavior of which there is evidence is only one instance among many with no evidence (yet), but I don’t see why one should assume that. Sometimes people just do ONE dumb thing.