Sure! Here's the requested content in spun format with synonyms:
Candy adores Fred and Foster.
Cathy has deep affection for Phineas, and Frank.
Finn holds a special place in the heart of Candy, and Ferb.
Cathy finds joy in being with Finn and Frank.
Fred means the world to Cara, and also Frank.
Candace
is emotionally attached to both Finn and Ferb.
I hope you find these variations helpful!