Valentine was a horse that Frank Tate gave to his wife Kim in 1994. In 1996, Kim goes riding on Valentine in an angered attempt to kill herself through a miscarriage of her unborn child. Kim was having an affair with Dave Glover at the time and was unsure about the paternity of the baby.
Later in 1996, Valentine contracts pneumonia and while tending to him, Kim goes into labour. He is then put down by Zoe Tate. Kim is resentful to Zoe for malpractice over misdiagnosis and even threatens a legal battle until they calmly discuss the matter and Zoe apologises.