Sometimes, it's best to forget the ones who will never return to you. K plus for one use of not really offensive language, but I'm cautious.

Watching Sherlock die ended everything John had come to love. He wanted to forget all the hurt that it caused. Lacuna gave him a way out. Now Sherlock is back, but John has no memory of their life together. On top of that, a lovely girl named Mary has captured John's attention. Sherlock must win John back and try to help him remember days gone by.

"Sherlock! Come back here!" John leaned over the banister to glare at the detective running away from the crime scene. "I'm erasing you!" John bellowed. "And I'm happy about it!"