Well, yes, dishonesty and disloyalty are never the answer. If a wife no longer wants to have standard sex (rather than an expensive, designer variation on sex) or a husband is no longer willing to do what is needed to ensure a decent quality of life for them both, this is a problem that should be worked on together. Perhaps s/he is depressed? Perhaps the other person’s expectations of sex or standard of living is too high and they need to compromise on that? If they cannot make expectations meet, they may have to split up. That would be an honest and honourable decision based on irreconcilable differences. Being dissatisfied with what one’s partner is providing is not an excuse for dishonestly seeking it elsewhere. I think that for men, cheating is often straightforwardly about sex while, for women, it is most often about scouting for a new partner? Neither is acceptable on grounds of “You were not meeting my needs.” That’s a reason for communication, not deception.

(Disclaimer: this also applies to women whose husbands don’t want as much sex as they’d like and men who feel their wives are not financially successful enough, obviously, but these complaints are much less common)