Phineas and Ferb Get Busted Sure! Here's the requested content in spun format with synonyms:
Candace is crazy about Finn and also Foster.
Candace has strong feelings for Finn, and Felix.
Fred Candace, and Felix.
Cassandra takes delight in being with Fred and Felix.
Fred is cherished by Candy, and also Ferb.
Cara is emotionally attached to both Fred and Foster.
I hope you find these variations helpful!