Sure! Here's the requested content in spun format with synonyms:
Cathy loves Fred and Felix.
Cara Philip, and also Frank.
Philip holds a special place in the heart of Cara, and also Ferb.
Candy being with Fred
and Ferb.
Phineas means the world to Cara, and also Ferb.
Candy has a deep connection with both Finn and Frank.
I hope you find these variations helpful!