A source tells ET that Haack's friends aren't surprised that Haack and Hall have taken their relationship to the next level.
"Christina loves love and enjoys being in a committed relationship," the source says. "She is having a great time with Josh and they are so in love and excited about this next chapter. They love experiencing new things together, traveling and going on adventures."
"Tarek moved on from Christina long ago and is on cloud 9 with Heather," the source says. "He is happy if Christina is happy. Tarek is totally obsessed and in love with Heather and you can tell in the way that Heather looks at Tarek, that she feels the exact same way about him."
"When we met this past spring, the synchronicities hit us so hard and fast they were impossible to ignore," she wrote. "I felt immediately crazy protective over him and wanted to keep him for myself and get to know each other before the tornado (media attention) hit."
"The internet and social are great for businesses or staying up to date on fam / friends but also, can be toxic and (let's be real) pretty fake," she continued. "I may be a bit crazy and I'm definitely not perfect but I will never live my life based on other people's judgments or opinions. ... So yes 'another relationship' and guess what. I'm 38 -- I'll do what I want."
On Monday, Haack shared a picture of her sporting her engagement ring, letting her emojis do the talking. She also changed her Instagram bio to read, "Mommy. 💍 Josh Hall."