Thats a nice way to look at it, but I can see many flaws in this arrangement..but as long as the couple is happy with that setup, who are we to care.
Ever heard of a joke?
Yes, its all romantic and sweet and cute and stuff but you know what…no one in their right mind would willingly fall into such a situation unless they’re madly in love.
But at the same time there is a big difference between living in a shoebox sized basement apartment when one or both are still students and/or getting outside help, versus two professionals living a still-comfortable life and working up twoards a much more comfortable life.