His tweet included photos of the couple together, showing off the engagement ring.
According to the story, Chapman, 67, “got down on one knee and popped the question in a romantic candlelit proposal at their home in Colorado.”
“I wasn’t expecting it at all,” Frane, 51, is quoted as saying.
The news comes weeks after Chapman reportedly confirmed they were dating.
She was 51.
They starred in the popular reality series “Dog the Bounty Hunter” and raised 12 children together, while splitting their time between homes in Hawaii and Colorado.
The pair and their son Leland also starred in CMT’s reality series, “Dog and Beth: On the Hunt,” for three seasons from 2013 to 2015.
In September 2017, the couple used the official Facebook account to confirm a report that she had been diagnosed with Stage 2 throat cancer.
They later revealed during the A&E special, “Dog & Beth: Fight of Their Lives,” that the cancer had been removed and she was cancer-free.
But the disease returned in 2018 and they documented her struggle on their WGN America series, “Dog’s Most Wanted.”
He later explained that they were not romantically involved and that it was loneliness which drove his actions.
Chapman and Frane told The U.S. Sun they got together after he called her home seeking her husband Bob to do some work for him, not knowing that Frane’s spouse too had died of cancer.
The newly engaged couple say they planning to wed once the Covid-19 crisis passes.
CNN has reached out to a rep for Chapman for additional comment.