Sure! Here's the requested content in spun format with synonyms:
Cara Finn and Ferb.
Candy has a soft spot for Finn, and Foster.
Philip holds a special place in the heart of Candace, and also Ferb.
Candace takes delight in being with Finn and Frank.
Fred has a special place in the heart of Cassandra, and Foster.
Cara both Philip and Foster.
I hope you find these variations helpful!