Sure! Here's the requested content in spun format with synonyms:
Cara adores Phineas and Ferb.
Cassandra has deep affection for Finn, and Ferb.
Phineas Candace, and also Ferb.
Cathy takes delight in being with Philip and Frank.
Phineas has a special place in the
heart of Cassandra, and Foster.
Cara has a deep connection with both
Phineas and Felix.
I hope you find these variations helpful!