Following their day at the beach, Tyson took to Instagram to share a heartfelt tribute to his girlfriend.
'Feeling super lucky this girl has come back into my life at the perfect time and that I'm now able to call her my girlfriend. Couldn't be happier,' he wrote.
On Sunday, Cass introduced rugby player,Tyson to her followers.
“It may seem like Bachelor in Paradise was a little like De Ja Vu for me, but the intensity of both those experiences and any pain I felt is all worth it since having this guy walk back in to my life at the most perfect time,” she wrote.
“And yes I say “back” into my life, as we met back in 2017 😱 I can gladly say I’m the happiest I’ve ever been. And I’m so grateful for all of you for being so supportive and protective of me. My heart is so full ❤️.
“And Oi guys guess what... the ”dream journal” was right, I wanted to meet my soul mate when I was 23... and guess what I met him at 23.”
Watch: The moment Richie broke Cassandra's heart on Bachelor in Paradise: