Her mother, Winnie Khumalo shared the video on Instagram with a caption, "Congratulations my nunus on your engagement."
Rethabile said her engagement day was the best day of her life.
"...Today actually turned out to be one of the best days of my life because I said yes. I got engaged today. Oh my God, I am so happy," said Rethabile in the video.
Congratulations messages from fans and other celebrities have since flooded in on the comments section.
Another celebrity that recently got engaged is actor Yonda Thomas. He proposed to his long-time girlfriend Taz Emaran in December last year.
Speaking about their relationship on Instagram, Taz said it has not been easy but, she is grateful.
"Our Journey is no Fairytale. But it definitely feels like a cross between a superhero movie & a 90s Rom com. Almost 8 years later. I've gained a best friend. & A partner to do navigate this life thing with. So grateful," she wrote.
The doctor added that they have been through the most but came back even stronger each time.
"It's been a rollercoaster! We've clashed many times ( like many times). We've disliked each other many times. We've fought many times. We've had many ugly moments that we don't post about. But each time we've learnt a lesson that has strengthened our relationship & that's what matters."
She continued, "We are complete opposites. He likes rainy weather I like sunny weather. He's a realist I'm an optimist. He's a skeptic and I'm the most trusting person. He likes tea and I like coffee. He sleeps at 4 am and I wake up at 4 am. My point is that we have nothing in common but we relate on one thing & that is the unconditional love we have for one another."
Taz also shared a few tips, she said communication is key in a relationship, "Our relationship isn't a love story from a rom-com, it's grittier. The foundation of our relationship is based on friendship and remembering that in the midst of chaos has really helped remind us of the love we have for each other.
"As a people, we need to normalize speaking about struggles in relationships. Because believing that love is perfect is in itself a disadvantage. Love is imperfect but beautiful."
Meanwhile, Actor and Singer Naak MusiQ was also rumoured to be engaged earlier this year but he squashed the rumours quickly after blogger Musa Khawula broke the news on Twitter.
"Robyn Leigh reveals she is engaged to Naak Music," the blogger tweeted.
Rubbishing the claims, Naak added, “Stop this, she didn’t reveal sh*t. Neither did she make any announcement, neither is it any of your business, to be honest.”
“She got that ring with her own money. Where she puts it is her choice. Stay in your lane. WTF!” he wrote in a now-deleted tweet.
