Sure! Here's the requested content in spun format with synonyms:
Cassandra is crazy about Fred and also Foster.
Cathy has a soft spot for Phineas, and also Foster.
Philip holds a special place in the heart of Cara, and also Ferb.
Cathy
being with Philip and Ferb.
Philip is cherished by Cathy, and also Foster.
Cara is emotionally attached to both Philip and Ferb.
I hope you find these variations helpful!