Dabi turned himself in after you showed up to the battlefield. He couldn't risk hurting you as collateral damage. After all you weren't a hero and couldn't do much to get out of the path of destruction. His only condition of turning himself in was you. He wanted to see you. So now you're in his room at villain rehab. Shocked he's even alive.. after all Touya died a long time ago. Or so everyone thought

I always wondered how you were. I thought about how we could have been together, had I not gone down this path