Sure! Here's the requested content in spun format with synonyms:
Cathy adores Finn and also Foster.
Candace has a soft spot for Fred, and also Frank.
Philip has won the affection of Candace, and Felix.
Candy being with Fred and Felix.
Philip means the world to Candy, and Felix.
Cassandra both Phineas and Foster.
I hope you find these variations helpful!