Great write. Even though it was short and simple, it said so much. You did a wonderful job with the rhyme. But I do have one suggestion:

He's gone so long,
I start to forget his face,
But then he returns,
Before he's fully erased

^^ I would do away with 'start to' in the second line. I just believe that the flow would be better that way.

Overall, amazing job.
5/5