But it wasn't your standard proposal: Neil proposed on stage at Kav's fellow CBB housemate Alexander O'Neal's concert.
Katie Price, 36, who was also there with her husband 27-year-old Kieran Hayler, confirmed 37-year-old Kav's happy news on Twitter.
She tweeted: "Wooo Kav just got engaged wooo."
A source told the Daily Mirror Kav was shocked when Alexander invited him on stage halfway through the show, revealing: "He introduced him as my Dawg.
"Kav appeared to cheers and clapping and I think he assumed he was going to sing to Alex.
"But then his partner Neil appeared at the stage and was handed a microphone. He proceeded to get onto one knee and ask Kav to marry him.
"Kav looked totally shocked and immediately said yes as he took the ring from the box and put it on his finger to cheers and clapping from the crowd."
It seems the CBB alumni were out in force last night, as the source added that Kav was congratulated by Cami Li as he exited the stage.
Sharing a snap of the three of them after the show, Neil wrote: "Massive thanks to @AlexanderO_Neal night #Made #romance #legend [sic]"
Congratulations to Kavana and Neil!