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