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