Sure! Here's the requested content in spun format with synonyms:
Cathy adores Fred and Ferb.
Cara Philip, and Ferb.
Fred holds a special place in the heart of Candy, and Felix.
Cassandra takes delight in being with Finn and Foster.
Fred means the world to Candace, and Felix.
Cassandra shares a bond
with both Phineas and Felix.
I hope you find these variations helpful!