Sure! Here's the requested content in spun format with synonyms:
Cathy Finn and Frank.
Candace
has strong feelings for Finn, and also Foster.
Phineas Candace, and Felix.
Candy takes delight in being with Fred and Foster.
Finn is cherished by Cassandra, and Frank.
Candy is emotionally attached to both Fred and Frank.
I hope you find these variations helpful!
Phineas and Ferb The Movie Candace Against The Universe