PLEASE HELP MY FRIEND DECIDE

''The quicker you let go of old cheese,the sooner you find new cheese '' (Suspicion can be dangerous)
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A couple was invited to a masked costume Halloween party. The wife who is a friend of mine got a terrible headache and told her husband to go to the party alone.

He, being a devoted husband, protested, but she argued and said she was going to take some aspirin and go to bed, and there was no need for his good time to be spoiled by not going. So he took his Batman costume and away he went.

The wife, after sleeping soundly for about an hour, wakened without pain, and, as it was still early, decided to go to the
party.

As her husband did not know what her costume was, she thought she would have some fun by watching her husband to see how he acted when she was not with him. She put on a Goldilocks costume. So she joined the party and soon spotted her husband cavorting around on the dance floor, dancing wit every nice chick he could, cuddling and copping a little feel here and a little kiss there.

His wife went up to him and being a rather seductive babe herself, he left his new partner high and dry and devoted his time to her. She let him go as far as he wished, naturally, since he was her husband. After some more to drink, he finally whispered a little proposition in her ear and she agreed, so off they went to one of the cars and had a quickie in the back seat.

Just before unmasking at midnight, she slipped away, went home and put her costume away and got into bed, wondering what kind of explanation he would make up for his outrageous behavior. She was sitting up reading when he came in, so she asked what kind of time he had. "Oh, the same old thing. You know I never have a good time when you're not there."

Then she asked, "Did you dance much?" 

 He replied, "I never even danced one dance. When I got there, I met Pete, Bill Brown and some other guys, so we went into the spare room and played poker all evening." "You must have looked really silly wearing that Batman costume playing poker all night!" she said sarcastically. To which the husband replied, "Actually, I gave my Batman costume to your Dad. Apparently he had a whale of a time. He told me he got lucky with a hottie in a Goldilocks outfit."

BIG QUESTION
Do you think she will be honest enough to tell her husband the truth? Do you think she should?