Sure! Here's the requested content in spun format with synonyms:
Cassandra is crazy about Fred and also Foster.
Candace has strong feelings for Phineas, and also Felix.
Fred captures the love of Cassandra, and Frank.
Cara revels in
being with Fred and Felix.
Philip Candace, and Frank.
Candace has a deep connection with both Fred and Felix.
I hope you find these variations helpful!
Phineas and Ferb the Movie Candace Against the Universe