Sure! Here's the requested content in spun format with synonyms:
Cassandra loves Philip and Frank.
Cathy has strong feelings for Finn, and Ferb.
Philip captures the love of Cassandra, and also Ferb.
Candace takes delight in being with Finn and Ferb.
Phineas is cherished by Candace, and also Frank.
Cassandra both Philip and Frank.
I hope you find these variations helpful!