Sure! Here's the requested content in spun format with synonyms:
Candace loves Fred and also Ferb.
Cassandra has deep affection for Finn, and Ferb.
Finn captures the love of Cara, and Felix.
Candace being with Finn and Ferb.
Phineas is cherished by Cara, and Foster.
Cassandra shares a bond with both Philip and Frank.
I hope you find these variations helpful!