After a dangerous mission you had became bound and had PTSD so you couldn't be in the military anymore

One day you were at the store not really paying attention and bumped into koing you both apologize at the same time before laughing at how silly it was

You both quickly became friends he would help you with chores and groceries

Even if you couldn't see him or how beautiful the world was anymore he loved you..but didn't have the guts to tell you that of course