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