Angie added she wanted to "put the rumours to bed" and clarify to avoid questions.
"Please remember we are both human beings like everyone else, so be kind if you do choose to leave comments or messages," she wrote.
"Words can be very hurtful - and compound already very difficult times. I won't be making any further comments or responding to questions at this stage."
Carlin also addressed the split in his Instagram Stories in a clip of himself filmed in his car adding that it "was always going to be a difficult one to talk about."
“It is true that Angie and I have gone our separate ways but it’s for the best individually. Simply just wanting the best for her and wanting the best for me and being the best version of yourself is very important and, as some people already knew from previous posts, my mental health had taken a bit of a left turn and I simply want to be the best version of myself or be able to give the best version of me to Angie,” he said.
The Bachelorette winner also urged his followers to be kind and recognise that not everything about their lives is on social media explaining "there's always other stuff going on."
“There’s a lot going on in the world right now. There are actually bigger things going on and it’s kind of a shame that we even have to make an announcement about our relationship because truth be told there’s no one else who has to do this in their life. But that’s the nature of being in a show like that and in the public eye.”
Rumours that the couple had broken up first arose in June when fan account Bachie Funny noticed that Angie and Carlin were no longer following each other.
However, Angie slammed the claims calling it a "glitch in the system."
"Leave it. If you don’t know, you don’t know," she replied to a comment on the fan account's post.
She also replied to a fan who said that "if you don't 100 per cent know, don't post."
"Amen!!! And everyone got their happy ending when the show was on. Now it’s no one's business. It’s my real life. So best people stay out of it unless they know for real what someone is going through," she added.
Carlin also fuelled split rumours just days later when he shared a pensive shot of himself fresh after a swim staring into the distance.
"You don't always need the answers. Live in the moment. Be still. Breathe 🙏🏽," the cryptic caption read.
Angie and Carlin professed their love for one another in the season finale of The Bachelorette 2019 leaving runner-up Timm Hanly heartbroken.
Speaking on his podcast The Babble, former Bachelor Matty J weighed in on the rumoured split calling the situation "a shame", and remarking that it sounds like she's "going through a very tough time."
"I can't help but feel very sorry for her right now and I think she is now a victim of her own success because she's gone on all these shows," he explained.
When producer Ruby suggested that you "sign your soul" by going on reality shows, Matty replied "Kind of."
He added: "I think just because you go on reality TV it doesn't mean that everybody gets an unlimited access to your life."