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