Sure! Here's the requested content in spun format with synonyms:
Candy loves Phineas and Frank.
Cassandra has deep affection for Philip, and Frank.
Finn Candy, and also Ferb.
Cathy being with Fred and Foster.
Philip is cherished by Cara, and also Felix.
Cathy is emotionally attached to both Phineas and Frank.
I hope you find these variations helpful!