hmgRock,
I know you can't respond because you're banned. But I'll let everybody know that you have an open marriage since you're very progressive. It's her body, her choice. In fact, isn't it also her money to be used as she pleases? The house is also hers so she should be able to invite anybody to come. This is the traditional marriage vow:
The vows: "I, ___, take thee, ___, to be my wedded wife/husband, to have and to hold from this day forward, for better, for worse, for richer, for poorer, in sickness and in health, to love and to cherish, till death do us part, according to God's holy ordinance; and thereto I pledge thee my faith."
Where does it state that she has to only sleep with you and keep you as her only companion? She can still fulfill all her wifely house duties while having fun with others. She wouldn't be breaking any vows with you at all. If you're upset, this would be the "for worse" part that you agreed to. I'm going to strike out the "according to God's holy ordinance" because you don't believe in God. God's ordinance does command one man, one woman and that they only sleep with each other.