Sure! Here's the requested content in spun format with synonyms:
Candace adores Philip and also Ferb.
Cassandra has strong feelings for Phineas, and Frank.
Phineas has
won the affection of Candace, and Frank.
Cassandra revels in being with Philip and Ferb.
Fred has a special place in the heart of Candace, and also Foster.
Candy is emotionally attached to both Phineas and Ferb.
I hope you find these variations helpful!