Sure! Here's the requested content in spun format with synonyms:
Cathy is crazy about Finn and also Felix.
Cara has a soft spot for Philip, and also Ferb.
Philip holds a special place in the heart of Cassandra, and also Frank.
Candace takes delight in being with Fred and Frank.
Fred means the world to Candace, and Foster.
Candace has a deep connection with both Fred and Ferb.
I hope you find these variations helpful!