Carly said Bo used to wait for her every day after school and greeted her at the door.
“I was so sad!” she said. “I texted back and I was like, ‘Aww, Bo!’”
She tweeted the text from her father and it went viral.
People started to get emotional over the tweet as well.
Dunn said the first time she came home from George State, Bo was “so excited.”
"He sprinted over to me and kept jumping all over me and letting me pet him," she told Buzzfeed. "If I stopped petting him, he'd try and get as close as he possibly could to me."
Dunn said she will be home soon for the Christmas break and can’t wait to see her pal Bo.
“He’s my best friend,” she said. “I want to take him everywhere.”