Sure! Here's the requested content in spun format with synonyms:
Candace loves Fred and also Frank.
Cathy has strong feelings for Phineas, and also Ferb.
Philip Candy, and also Felix.
Cathy finds
joy in being with Philip and Ferb.
Finn Candy, and also Ferb.
Cassandra shares a bond with both Philip and Ferb.
I hope you find these variations helpful!