Married at 25, now 49. Totally, completely co-dependent. Could not imagine life without her, but she is one of a kind--the most honest person I've ever met, with the biggest heart in the world. She's also curiously intelligent, and variously talented--a biochem major who is now a licensed architect, and who is the best dancer you will ever see, and an olympic-caliber diver, too. I'm 100% sure she would drive anybody else insane.
Nobody I have ever met has what we have. When we look at each other we still feel the way we did 25 years ago. We would each give our lives for the other without even thinking about it, and whoever dies second will probably end up taking their own life, because the pain and loneliness will be too much to bear.
We have been dirt poor, and now are rich by most standards, and none of that matters the slightest bit.
I post this to let people know that it IS possible to find "the one", and to remain in mad love. We considered ourselves "married" the moment we met, and have never been away from each other for more than 3 days, and at that, once twice or three times, for business.
To have such an arrangement work, one person MUST be "stronger" than the other, and must use that strength to make sacrifices and concessions in favor of the other person--in our case, I am the "stronger" one, and have adopted very much more of her world than she has adopted of mine. It takes strength to know and allow this, to understand why it is necessary, and it takes enormous strength to maintain it over the years--but I guess the main point is this: we all have our strengths, and we all have things that we can deal with, and things that we can't. In our case, our strengths are well-aligned with what is required to maintain our love, so it works, perfectly.
For instance, I am not a superman--I can't be around stupidity, hypocrisy, or entitlement mentality for more than a few seconds without going insane. I could never, ever, tolerate those things. But, my strengths are well-matched to our relationship.
Am I lucky? Absolutely. I can't think of any other "reason" for the luck, other than that there is a god who put us together. But just like somebody has to win the state lottery, somebody also has to win the love lottery. It DOES happen.