I mean when you say you’re ‘in love’ what that really means is that your brain is being constantly exposed to chemicals that before it wasn’t. You are now on drugs, when before you weren’t on drugs. Any artist can tell you that doing drugs changes the content of their work.

Also from my personal experience, being depressed comes with identifying as depressed. You will engage in behaviors to maintain this identity. In order for me to move past being depressed I had to allow myself to die. I had to create a new identity for myself and completely drop my old self. My personality is still in tact, as that’s how personalities work, but I no longer carry my depressed view of my self. I started listening to podcasts more, when previously I would listen to music 24/7 and I started exercising more and caring about my health in general a little bit more. You’re a new person now. The depressed person you identified with can’t be you, because they weren’t in love, and you are in love. Remember your past self, and love them even, but don’t try to revive them. You could also look at it in the inverse. Maybe this is your true genre interest, but your brain on depression was the state more akin to being on drugs, and therefore your depressed brain was the one reading odd books, and now you’ve reverted back to your nature.