Elly, who originally took part in Matt Agnew’s season of The Bachelor, added: “It’s a bit of a quick turnaround to go from thinking you’ve found the person you want to be with forever to being single again.
“I wasn’t happy for a little while there and I know from my end, I gave it absolutely everything I had.”
In the lengthy caption, she pleaded with her followers to “keep comments and messages to yourself”
“Having your personal life/relationship on display for the Nation/World is something you couldn’t possibly understand unless you go through it yourself...” she wrote.
“And yes, I do know that I put myself in that position but I’m still allowed to say it’s hard & that you truly can’t appreciate the weight of it until you experience it. People can be incredibly cruel so I just ask that you please be kind to us both.”
Elly later continued: “Obviously I am very disappointed & devastated at the whole outcome but what can you do? I know I can look back and know I did everything I could to try to make it work so that’s good enough for me.”
Last month, Elly insisted that she and Frazer were still going strong despite swirling speculation they were no longer together.
"We are still together and I am going to move to Queensland in January, that's the plan," she told fans.
Elly picked Frazer over runner-up and ex-flame Joe Woodbury in this year's Bachelorette finale. Big sister and fellow Bachelorette Becky Miles chose Pete Mann as her winner but the pair broke up just three days after filming wrapped.