When it comes to matters of the heart, some ponies like to share. Dragons, not so much. Young dragons, even less so. Young dragons with a crush in one hand and a pickaxe in the other, least of all. And when one such creature finds himself caught in a love triangle with the mare of his dreams, well, something's gotta give and someone's gotta go.
Sorry, Tom, but Spikey doesn't share mares.