I'm not sure I understand the question, "codependent other" ?
As in my partner the codependent?

But of course if I only ruled the world....mmmwaahhhaaahhh.
Seriously, everyone's life would improve if they would take the healthy, non-crazy road.
And specific to my world, yes, but not to say that hard individual work still wouldn't need to be done. It wouldn't make life perfect but make some dailies less consuming.
And if I was in the midst of crazy answering this question I might have had a laundry list of how his changes would make my life better...

YES ! ANd I have proof of that , lol......
there has been periods of time in our four year relatioship that he really was tryign to stay clean and he was really different , when I checked up on him and time after time he would prove that he was telling the truth , or he agreed to drug tests and they were negative , and he acted nicer to me , and he avoided certain friends , I started to feel more relaxed , I felt myself slack off on worrying and wondering what he was up to . I started feeling more trusting as a result of his right actions.
So yes I do think my "codependent nature would fade if my addict cleaned up his act for real .
The problem is that he relapsed and eventually I couldn't even feel relaxed when he was behaving because I was always waiting for the next big episode where he used again and my life was in shambles , and limbo again , and my values would be challenged, and all the trust would be back to square one , and starting over rebuilding it . That has gotten disgusting and unlivable .
After this latest relapse , I just feel broken and like I just don't want to try anymore only to get nothing back .
Its always one step foreward and 10 steps back with him .

NewRain I SO TOTALLY AND COMPLETELY get you, I do. Of course there can and will be periods of 'calm' but if you don't continue to work you, and understand you, and LIKE, LOVE, all that gooey stuff towards yourself the waiting for the 'next time' will always be there and that is sometimes as hard as being in the midst of a crisis. If you can believe that you can live with out crisis and that you can live without waiting on the next crisis...well, you can, but it won't come from him being okay, it will come from you being okay.
Did that make sense?
(I am goofy today...my fingers aren't moving as quickly as my brain and some of these posts aren't coming out as intended, and darn it I type bout' 75 words per min).

I say no...why you ask? Well, if we are truly CoD, then without the true healing then nothing actually changes even if they change. We will still want to be CoD. We need to heal ourselves and then find a healthy relationship OR be in a relationship with someone we want to change, BUT we heal ourselves and they stand by us and then they don't need all the fixing? Just my thoughts :)