When Sammy was 5, he developed a crush on Cammie, but she doesn't know that. 8 years later, Sammy still has that same crush on Cammie. In Cammie Unleashed, Cammie has realize that she is in love with Sammy.
Sonic the Hedgehog: Lunatea's Veil
Sonic the Hedgehog: Dawn of the New World
Shadow the Hedgehog 2