It's a lonely feeling.

Accepting two things has helped me, but maybe not everyone
1. Others may never really truly understand but yet how would or could they? They are not me, haven't been what I've been through. Some may relate but truly understand maybe not. Accepting that is Ok
2. Understanding myself more and understanding some things I don't understand fully (my sister and I had similar abuse but we feel different ) and saying that's Ok (go back to 1, we are our own individuals).

It may feel lonely but others may feel lonely on some of their own issues.

Being my own friend sometimes does wonders too.

I've went through struggles of needing others to understand, its some what triggering for me too.. But I can not make another understand and perhaps they just are unable to truly understand due to they aren't me.... But that doesn't mean that they cease to care.. As you note in your post.