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