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