My Little Dashie Happy Ending

I give full credit to ROBCakeran53 for the start of the story. I edited the end so it's not so sad.

A man finds a filly Rainbow Dash and cares for her for 15 years before Celestia and the rest of the gang come to take her home. When He and Rainbow Dash hear the news, they are heartbroken. But will it really end up to be that bad?

Everyone