Some marriage mates might discreetly hold hands, but if they embraced each other during public prayer, those who got a glimpse of such conduct might be stumbled.
Remembering vows from JW weddings, I recall that a wife purpose is to further her Husband's ministry. That is straight from the GB. None of this "love" crap, just help him get dressed so he can go out in service and be "used" until he makes Elder.