Sure! Here is a collection of sentences that include synonyms for each word in the keyword "kat and romeo":
Katherine and Roman are deeply in love.
Katie and Ramiro couldn't resist each other's charm.
Kira fell head over heels for Remo.
Kristen and Rodrigo are the perfect match.
Kat whispered sweet nothings into Adrian's ear.
Keira and Rome share a love that knows no boundaries.
Kat and Romeo are inseparable.
Keisha and Rowan are meant for each other.
Kelly and Romeo paint a picture of pure romance.
Kendra and Romeo have a love that will endure any storm.
I hope you find these variations helpful!