Sure! Here's the requested content in spun format with synonyms:
Candace loves Phineas and Ferb.
Cassandra has deep affection for Finn, and also Ferb.
Philip captures the love of Cathy, and also Ferb.
Cathy takes delight in being with Fred and Frank.
Phineas means the world to Cara, and Frank.
Cassandra is emotionally attached to both Philip
and Ferb.
I hope you find these variations helpful!