My husband’s fantasy has driven him into the arms of not one but two women

DEAR DEIDRE: After months of asking me for a threesome, my husband’s fixation with it has driven him into the arms of two other women.

I’m 38 and he’s 42. We’ve got two kids, aged seven and five, and have been married for 11 years.

Until now we always had a good sex life, so I can’t understand why it’s not enough for him any more.

While we enjoyed exploring in the bedroom together, we never did anything extreme. But over the last few months his interests have changed...