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