I dunno. Some of the very modern self-help-speak in the comments here turns me off. If you have very bad things, and then you also have a very good thing, it is a refuge from the very bad things and it does help a whole lot. I don't see why it should make it better to pretend otherwise. Sure, there's reasons to tell her about how things are--but then, he's done that if I remember right. There isn't so much reason to bring it in all the goddamn time. Better to create some experiences that are not about that stuff. And depending too hard on a single person has drawbacks, but it's sure as hell better than having nobody.
It has always been my belief that wallowing in the bad things in your life, recounting them, exploring them and so on, over and over, can do more harm than good. And research into memory suggests to me that I may have been right about this: The more often you recall something, the stronger the links/pathways to that recollection become, meaning it becomes easier to recall and more prone to being invoked in connection with more things. Face stuff, come to a rough accounting of it in your head, and then try to move on.
And as a lifelong romantic who has always found that strong pair-bonds (including my marriage of 23 years) have made my life immeasurably better, I think the fear of codependency or whatever the buzzword for similar concepts these days, is partly a fear of commitment and trust. I feel our society makes it hard to commit to people and really trust them (and indeed in some ways makes it hard to be trustworthy). But if you find the right person, you can, and it's not a bad thing; it can make you stronger rather than weaker. Inevitably it's going to mean putting your trust in and relying on someone who's imperfect and has weaknesses, but if everyone does their best it can work out anyway.
Meanwhile, manager is awesome.