What do you call a feeling that's like nostalgia but for a time you don't miss, and in fact hated?

I love the music of my youth, The #Offspring and #SkunkAnanzi and #GreenDay and #TheVerve and... You get it.

Which may sound odd from the guy who loves #powerwolf and #brothersofmetal.

Well it's because I'm happy. But I was miserable when that music was current. I was closeted, depressed and deeply unhappy. I was filled with impotent rage. That music let me express all that in healthy ways. It was an outlet that undoubtedly saved my life several times.

I dont have nostalgia for that time. I hated it. But I still love the music that helped me survive it.