The Friend I Left Behind

(Before you read, I just want you to know that I know very little about the Warrior Cats. So if you want to give me any corrections, please let me know)

"Who attacked me?" Fire'Heart thought as he had been pushed to the ground by a familiar cat. As he looked up wearily, he saw that the last cat he ever thought he would ever see again joined BloodClan.

"Smudge?!" His old friend answered with quiet laughter and a fake smile.

"I'm afraid it's Claw now, Rusty~"

----

When he left the two legs, Fire'Heart thought that his departure had no real effect on anyone. He forgot about his Kittypet life, and embraced the ways of the wild. Truth be told, his departure did have a huge effect on someone- his best friend, Smudge. Their two legs thought he killed Rusty, so they abused him.
Then they adopted another cat, who bullied him worse. Then another. Then another. Until Smudge couldn't take it anymore; so he ran away from the two legs. Scourge gave him an offer to join BloodClan, and Smudge agreed, embracing his clan name... "Claw".
With a sense of revenge rushing through him, Claw led an attack against ThunderClan. How convenient that Fire'Heart was leading ThunderClan's attack. Upon learning his old friend joined BloodClan, Fire'Heart was tragically shocked and ordered a retreat.
Will Fire'Heart figure out what made his old friend so angry, or will Claw kill him before he could?