Hiraeth.
Who knew it’s a thing? Maybe Ruby did. Yes, I’m quite certain she did. Does.
Hiraeth.
A longing for a home you can’t return to, or one that was never yours. not necessarily a house, but a homely feeling such as love.
Hiraeth.
I am sometimes consumed by Hiraeth.
Dispatches From Out West 
I recently came across this word myself, though I can’t recall the context. Though I didn’t know what it was, like you it’s consumed me the last couple of years.
LikeLike
I came across this word recently myself for the first time. It hit me right between the eyes for I’ve also been feeling it for quite some time. I just didn’t know what it was called.
LikeLike
YES! I was so surprised there’s a word for it. The strong longing to return to something that may or may never have existed. Home.
LikeLike