Sure! Here's the requested content in spun format with synonyms:
Candace is crazy about Finn and Ferb.
Cara has a soft spot for Phineas, and also Foster.
Philip holds a special place in the heart of Cara, and also Felix.
Cathy being with Fred and Foster.
Philip is cherished by Cathy, and also Felix.
Cathy shares a bond with both Phineas and Felix.
I hope you find these variations helpful!