I haven't read the whole thread but think I get the gist.
I think some of the misunderstandings might be because of the wide age range of MN posters. We have people here from 18 to well over 80.
I have friends in their 80's and it's not unusual for the wife never to have learnt to drive. They started work in an era when you often had to give up your job when you got married. You couldn't get a mortgage without your husband's agreement and signature. Daddy really did 'give you away' on your wedding day, when you promised to 'love, honour and obey'.
Married couples, in love and having been parted in earlier days by the war or a genuinely hard day's work, often wanted nothing more than to spend their leisure time together. We felt like that too, madly in love in the flower power sixties, all we wanted to do was spend every waking moment together. It wasn't unhealthy, and we have clocked up 45 years of marriage. We always used to enjoy doing a big shop together and stop at the cafe for a coffee and a bite to eat. It made an outing out of a chore. Why not?
We used to do most things together throughout our entire married life, and still had regular Friday night date nights out. I also had time for girlfriends, or shopping trips on my own (my H hated shopping except food shopping), and of course we both worked. We brought up 2 children as well, without co-dependency being too much of a problem. Anyway, if you love one and other and are intent on building a secure and happy family, you are actually going to be healthily dependent on your love ones, and they on you. To keep your guard up as a protection against love would be very sad way to live a life.
As someone wise once said, grief is the price we pay for love. I am in a thoughtful mood because my darling husband is terminally ill. And I am glad for every second of my time we spent together. We have had a rich life full of love and co-dependency, and our adult children are proud and thankful too, and our grandchildren too are aware of the loving warmth of family.
I think I can empathise with the confusion here as I come from a disastrously damaged and fractured family, and I well remember when even seeing an apparently 'happy family', hurt my chest inside and made me want to run or scream. Those feelings can get muddled and confuse the messages. Even therapists I believe are confused by this, hence the idea that co-dependency is unhealthy. But that is another debate for another time.