Whether married couples to unmarried or living alone. If your life properly, appropriately and wisely, then surely there can be happy with. But it is a happy man.
Whether married for life as a couple or a single person living alone. If used properly and wisely and appropriately. You can be happy with them. But each is happy with it.
Whether to live a couple married or single living alone. If live properly properly and wisely. Surely can be happy together. Only happiness in different ways.