Sure! Here's the requested content in spun format with synonyms:
Candace is crazy about Finn and Felix.
Candace has deep affection for Phineas, and also Frank.
Finn
holds a special place in the heart of Cassandra, and also Foster.
Candy revels in being with Philip and Frank.
Phineas Cara, and Foster.
Cassandra shares a bond with both Fred and Ferb.
I hope you find these variations helpful!