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