Hembrow, 24, opened up to Jute magazine about why she ended their engagement.
"You have a picture of what you think your life is going to be like and then circumstances change and people change too."
The mum-of-two continued, "We were young when we got together and still figuring things out. I think when people are weighing in on your personal life while you're trying to understand things yourself it can feel like a lot of pressure."
"I share so much of my life, so I understand that my followers online wanted to know what was going on. People were wanting to know what happened before we even knew what was going on."
Hembrow and Hawkins were together for four years before ending their romance in June. They're parents to their two kids: Saskia, two, and three-year-old Wolf.
Following their split, the Kardashian pal admitted to her fans in a YouTube video that both had been faithful - despite any gossip stating otherwise.
"One or two months ago, I decided to end things with Reece. He didn't cheat on me, I didn't cheat on him. It wasn't like that at all," she said.
"I don't want people to think we just gave up. Most people know relationships are very complex."
Hawkins has moved on with model London Goheen.