I googled co-dependency because I wasn't sure what it was. I bow to your superior knowledge in this area, I just feel I have a strong attachment to her because she is my wife and I love her. I agree that maybe this has been too strong and I have indulged in things and behavioural patterns for the purpose of pleasing her, not myself.
Alpha, instead of looking up "co-dependency" (altho, "Co-Dependent No More" is an excellent, definitive book on the subject and ALWAYS worth a read) try instead googling "enmeshed relationships." That may be a better place for you (and hopefully with the help of a good IC) to start.