Sure! Here's the requested content in spun format with synonyms:
Candace adores Phineas and Felix.
Cara Philip, and also Frank.
Finn captures the love of Cathy, and Felix.
Cassandra takes delight in being with Fred and Ferb.
Finn Candy, and Ferb.
Cara is emotionally attached to both Finn and Frank.
I hope you find these variations helpful!