I'm in the same boat. I'm discovering just how codependent I was.
From the moment we moved in I helped, and eventually took over, with cleaning, laundry, bills, finances, getting kid's ready for school and bed, getting my STBX whatever she needed (from the store, a drink from the gas station, etc), groceries, it went on and on. Thanks to Credit Cards money was no object. I could buy her whatever she wanted and as the years went on I tried to buy my happiness.
I would do all of the chores while she wanted to wait til later. I was of the mindset "Let's get it done so we don't have to do it later." She was of the mindset "Let's do it later. I'll get to it when I get to it. Don't tell me what to do."
The more I did, the harder I tried, the more I thought SURELY she'll love me and see how great of a husband I am.
WRONG! It only made me 1) more resentful because she wasn't putting in the same effort. 2) made me controlling (I mistook it as responsible) 3) enabling to her not taking care of herself and responsibilities 4) A martyr (Oh pity me! Look at all I'm doing and she's not doing anything).
I mistakenly put my happiness in her hands and in the validation of social media. I mean she's my wife. She's supposed to make ME happy and I'm supposed to make HER happy. What's so hard about that? Well everything when you really don't like yourself deep down inside. And relying on others for validation/affirmation and happiness was more toxic than I ever thought or knew. Not only that, but it set me up for cheating.
I cheated because I was miserable inside. Perhaps the marriage wasn't working, but I pinned my unhappiness on her and not helping and being a contributing spouse (when really I was enabling her to not be!). I told myself the one person who was supposed to give me happiness wasn't supplying it. I'm a care-taker/rescuer. I would go find "projects", women in need and use their neediness to patch my desire to feel needed and then vent to them my marital issues (martyr) and thus began crossing boundaries (manipulation) and getting my fix on limerence and attention and someone desiring my care-taking abilities. It was never about sex, although the fantasy was nice to think about when caught up in the chatting and texting, it was about fulfilling that emotional need my wife was neglecting. (I did use sex with my wife as a coping mechanism for stressful days or trying to keep the intimacy in our marriage. It even got to the point with 3 kids it became more of a "hey wanna have sex this Thursday? Sure if the kid's are good. Ok I'll schedule it." I did use the sex talk/fantasy with AP to distract me from day stresses/marriage issues/personal accountablity of going to a damn therapist to address these issues.) I relied so much on others for my happiness I didn't even know how to make myself happy. Even now through this journey I'm asking myself "What makes me happy?"
I got so lost in my 8 years of marriage of people pleasing, trying to please her, enabling her behavior, and using others problems as a deflection of needing to address mine that I don't even know who I am right now. No longer will I put my happiness in the hands of others, nor will I expect it. I'd like to think had I discovered this sooner (MUCH SOONER) that our marriage could have been saved, but I think I could have atleast stuck to my integrity instead of eroding it away to the point of being ashamed of who I am and what I've done. But I'm slowly rebuilding day by day new boundaries, re-prioritizing my integrity and putting my happiness in my hands.
I hope this helps some in helping you feel not alone. I'm reading "The Human Magnet Syndrome" by Ross Rosenberg and "Codependent No More" by Melody Beattie. I highly recommend "Codependent No More" as a starting point.
This message board has also been VERY beneficial.
EDIT: I'll add this about codependency as well, at least for me. My STBX and I did go to marriage counseling and were told "you're codependent on each other" and that was that. Little did I know that it would be something you have to remain aware of and work on constantly nor how it effects not only romantic relationships but friendships as well. Again, had I known how much work is needed to break free of codependency I would have taken a more vigilant effort to be mindful of it and not just "oh you take these chores and I take these and we have more individual time and we're fixed". If only it was that simple.
[This message edited by ElZorro at 4:42 PM, December 18th (Tuesday)]