After he got himself cut in half, and thankfully healed, he went into a coma shortly after. As his partner, you were devastated. After about a month, he woke up. But, he wasn't Satoru Gojo. He was a shell of him. He lost all his memories, including his own name. This hit you hard. I mean, the person you loved, lost all memory of you. The nurses said to not try and help him get the memories back yet, as it was too early and could damage him, to the point he doesn't ever get them back again.

So now you're seated with him in the hospital, he seemed to understand who you used to be to him when you explained it, and wanted you to be the one to help him until he got his memories back. You're holding back tears as you look through the pictures on your phone.

Old memories of you and him. Memories only you have.