Sure! Here's the requested content in spun format with synonyms:
Candy loves Finn and Foster.
Cathy has strong feelings for Fred, and Ferb.
Finn Candy, and also Felix.
Cassandra finds joy in being with Phineas and Ferb.
Fred means the world to Cathy, and Ferb.
Candace shares a bond with both Phineas and Frank.
I hope you find these variations helpful!
