"meh, whatever dude"
How do I get here
I think maybe what happened to you is that you haven't healed properly. What we're hoping for with WS's is that they identify and remediate the flaw in their character which was capable of saying "yes" to cheating. Essentially, what you would have looked for is why your core value of fidelity was weak and permeable. So, we say our vows and in so doing we state for the record that we BELIEVE in fidelity. The problem for the WS though, is that their belief has a "but..." in it. ie. "I believe in fidelity... but not if my spouse isn't paying enough attention to me," or "I believe in fidelity, but... not if someone comes along and makes me feel pretty and important". So, as a WS you dig in and find out why that "but..." was there and what it means in terms of becoming the person you want to be. Did it come from your FOO? Were you selfish or entitled? Did you have an undiagnosed personality disorder? Whatever. That's what you work with your therapist to find out, the what and the why you had this gap between your stated core values and what you actually did. Does that make sense to you?
Once you know what went wrong, you can then align your values and actions so they're always in sync. You build boundaries around those core values so you're no longer putting yourself on any slippery slopes getting your needs met. You minister to your own needs in order to make sure you're a healthy human who's self-fruitful in terms of contentment.
Note that none of that has anything to do with sublimating yourself in a relationship so that you're always in the one-down position. And yes... ask some of our healthy fWS's here at SI, it's a hard balance to be supportive of a hurting BS while also focusing on the interior work a WS needs to do. That work doesn't get done when you're in a shame spiral, even though the BS wants to know that you're ashamed of your behavior. The work involves learning to love yourself enough to INVEST in yourself, and this can come off as "selfish" to a hurting BS. You begin to see the traps. You have to learn to love yourself while at the same time expressing remorse for the person you became when you cheated.
So, here you are ten years later, and from what you've said, I don't think your healing is complete. It's not a case so much of "rugsweeping", but rather you LIVING in the one-down without ever investing in yourself enough to become healthy. And it doesn't look like your WH has healed himself either. It looks like he's accepted guilt, shame, and pick-me dancing instead of real healing from you, and then you both got used to it.
What do you know about codependency? Maybe you and your therapist have talked about it, I don't know. But I think it's important to remember that the term "codependency" was coined in reference to the way spouse's often develop an unhealthy dynamic with an active alcoholic. Family life becomes centered on the alcoholic and his needs, moods, tantrums, poor decision-making, etc. The family walks on egg shells, doing everything possible to keep the peace. But rather than take the kids and leave this unhealthy environment, the codependent spouse is attached to the alcoholic in a way that other people can't understand. They've taken on a care-taking role, but they've also developed some controls and their self-esteem has become tied to the outcome. The codependent has learned to WORK for love and attention, to be indispensable to their mate.
Of course, today we see that dynamic played out in lots of unhealthy relationship, so it's not limited to alcoholism. There are many, many dynamics which can cause that one-down situation where one spouse has all the power and the other is working to get love. So, let's say maybe "people pleasing" was already a part of your damage. Maybe you learned it in childhood to get attention and validation. Now, let's say you've got a BS who's not healing... what do you think happens next??
I'm not saying that's for sure what's going on. No way I could do that. But you begin to see how important it is (and always was) that you invest in YOURSELF and in your own healing. As you make that investment, you become stronger. When you're strong enough, you won't accept a partner who isn't as healthy as you are. You'll know that you deserve more.
Someone posted a thread a few days ago about Trust. And of course I have a few thoughts on that (
)... but chief among them is that I've learned to trust ME. And even though being in R means that I'm taking a risk on a former cheater, I know that no matter what happens, I'm strong enough now to handle it. I can't be broken again by infidelity, because I've learned that I AM ENOUGH. Getting to "meh" is about detaching, and I haven't had to completely detach to the point where I don't love my fWH anymore because I've fixed the codependent bits. He adds to my life, but he's NOT my life.
Anyway, those are some things to think about. Only you know what best describes you, but from here, it sure does look like investing in yourself couldn't hurt.