@hawkeye10,
Much as I hate to comment on something that chickenhawk wrote, this word negotiate has been poking at my brain.
To be able to "negotiate a deal" fairly, it has to be assumed both parties have equal negotiating abilities.
Taking any random couple, I don't believe you would often find 2 people together that would be able to come up with a truly fair deal.
Depending on the situation, one of the two will mostly end up with the short end of the stick, as he/she has more to lose by not agreeing to an unfair deal.
In this case, the wife has more to lose by not being able to see her friends without him tagging along, than the husband does by agreeing everyone needs some me time, and perhaps finding something else to engage him for the odd 2 or 3 hours his wife is not joined to his hip.
It depends on how well the person who is seeking a normal outlet for their interests can ignore a whiney butt who is demanding constant attention.