>for example, i was the girlfriend to a married couple. so
>the wife not only knew but most times participated. she all
>the time participated in courting me.
>
>also, they arent my vows.
>
>plus, anyone on the outside looking in doesnt know what that
>husband and wife have agreed on.
>
>i would never go into a situation hoping to get something
>other than sex out of it. not every woman is looking to fuck
>a man into being her man.

But this is not cheating. If the wife knows and is actively participating then all is good.