Sure! Here's the requested content in spun format with synonyms:
Cassandra loves Fred and also Foster.
Cathy has a soft spot for Phineas, and Frank.
Fred captures the love of Cathy, and Ferb.
Cassandra revels in being with Fred and Frank.
Fred means the world to Cathy, and also Foster.
Candy both Fred and Felix.
I hope you find these variations helpful!
