My journey for the last year has been a lot of "What do *I* want in a relationship?" I've been attempting to wrap my head around the idea that I'm allowed to have wants, desires, and needs, and that it doesn't make me a bad person to have them, or even to *gasp!* pursue those wants, desires, and needs. That it's ok for me to need support from my spouse after the death of my father (and to be so very angry at my spouse for deciding he was done being married, right when I needed him the most). And that, regardless of the reason behind my spouse's behavior, I can demand better, and walk away when he's not living up to his end of the bargain of marriage.
Where am I going with all this? Basically, it's taken me a year of hard work, self-reflection, therapy, and general crap to get it through my head, and really live and believe, that the only person I can control is myself. And that it doesn't matter one whit what the other person *says* they want to be (happy, healthy, and/or with me by their side)....it matters what they are DOING to get there. No amount of my crying, begging, pleading, or bargaining is going to heal my ex. Only he can heal himself. Just like only I can heal myself. It doesn't matter that he promised me anything.
Some advice sounds harsh - it's coming from places of experience. Hell, I still don't know what to do - I feel like I'm enabling him still because he still has me in his life, and doesn't have to do a thing to keep me there, because my expectations for him have become so low. But, I also have pretty low expectations from people to begin with (yet something else I'm working on! I think it goes along with I'm allowed to have wants, desires, and needs).
But I do know that, no really, we, as supporters, really do have to decide, sometimes hour to hour, what we want, desire, and need, and what we are willing to do (or not do) to have them met, and what we are willing to tolerate from our sufferers. It really is all up to each of us. And all we can offer someone else in the same shoes? Advice and flat out saying "It may not get better. You have to decide if you can live with this, as it is, or if you need more. If you need more, you may need to move on."