Rockstar revealed the big news in a Sunday Instagram photo in which she's posing with her new fiance and showing off her unusual engagement ring.
"Diamonds are a girl's best friend but moldavite is a witchy woman's best friend! #isaidyes #engaged," Rockstar captioned the picture.
Rockstar's groom-to-be also shared his excitement on Twitter by writing, "Thank you everyone for the congrats and well wishes!!!! I love you all and want to go like and reply to every one of you but there are so many!!!! @Mrs_ARockstar and I feel the love. thank you all very much!!!"
Rockstar and Chris have received many congratulatory messages from fans and fellow former Big Brother houseguests.
For example, Chris "Swaggy C" Williams -- who is engaged to Season 20 BB houseguest and Rockstar's pal Bayleigh Dayton -- tweeted, "Me, Bay, Fes & Haleigh planned to be in Baltimore tonight to surprise Rockstar but we couldn't make it. We all literally cancelled last minute. Feel so BAAAAD."
The Maryland native chose to address all the backlash in a Tuesday tweet.
"Response to comments on my engagement," Rockstar began.
"'I thought she was married '- I was to my daughters' father, it's called divorce. 'I thought she was gay.' - Well I love rainbows and gays, but I'm a cisgendered female that just loves the [eggplant emoji]. 'Ring cost $39' - actually free from a cereal box."