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