Nite_Hawk said:
That's kind of an interesting perspective actually, as both my wife and I have somewhat of an opposite opinion. We've actually discussed this. We'd both be pretty upset if we had sex with other people "for fun" behind the other person's back. Still, we both agreed that we'd be much more devistated if the other person had sex with someone else for more than just the fun of having sex (some kind of emotional fulfillment or companionship). In the first case, it's not something that is habitual. It might be irresponsible and in poor judgement and hurtful, but it's not necessarily indicating a broken relationship. In the second case, the indication is that there is something fundamentally wrong or missing on a deeper level than just wanting to experiment with sex.
Nite_Hawk
Exactly and I agree. If a spouse has tried everything - counseling, etc. - and is still stuck in a loveless, non-intimate relationship then they become highly exposed to infidelity for intimacy, not sex-as-sport. In a way it's more forgiveable from a macro, emotional standpoint, but it's definitely far more threatening to the marriage and more of a betrayal than sex-as-sport.
Then again, one might argue 8 years of celibacy was the original betrayal, might they not?
I think the "strong" person would divorce first ("but what about the kid?!"), however it may not be so black and white as people think.