Long story about how I got to thinking about this (post on Reddit's "relationship" sub); but, I realized, again, today how much more I value myself than I used to. I have a lot of people I care about who just don't care as much about me. Or at least don't show it in a way that would make me think they do. But I care for and genuinely like "me" enough now to not even be defensive about that. For example, I don't sit around thinking of ways I've been "wronged" (very often, still have some work to do around my ex, though not as much as I did).
To me, it's more just like an incompatibility. Perhaps temporary, perhaps forever. But I don't make it about me. I might think it's unfortunate. It might make me sad. But not for long, and I don't dwell on it. Because I think I'm pretty great. And I accept the fact that I'm not everyone's version of "great".
I remember writing about this a year or so ago. How I was really struggling with my need to be validated. I was concerned that I only saw my worth through other people's eyes. That's not the case anymore. It's just a whole different feeling. All this work is paying off, and I can see it in my own contentment and optimism. Pretty cool.