"Sorry you and Ange didn't work out," one fan wrote.
"You will find your love. Shame you and Angie didn't work out," another added.
"This has been my new life motto since losing my husband," a third poignantly noted.
The Bachie lovers have been playing coy since whispers of a break-up first started swirling and in another interesting twist, perhaps to keep speculation at bay, Angie appears to have liked Carlin's post.
Carlin also took to his Instagram Stories to share an inspirational quote, which read: "People who are really judgmental about issues, they don't have a relationship with people who are struggling with that issue... when it's an issue you talk about it one way, when it's a person it's different."
In May, Carlin went public with his battle with depression and anxiety following his appearance on the popular dating show.
"People think they know you from your 15 minutes on TV," he explained.
"It's so easy to portray a happy, 'blessed', fun, easy-going life on social media ... but what people don't see is the storm that we can have in our minds, the depression and anxiety that we struggle with daily."
"It took my doctor to tell me I suffer with severe depression and anxiety only months ago, for me to seek help."
Clues of a split first started to appear when eagle-eyed fans noticed Angie and Carlin had unfollowed each other on social media.
In another telling sign, the usually snap-happy couple have also been a little quiet when it comes to posting pictures of each other lately.
But after fans pointed out the change, Angie blamed the move on a "glitch in the system", as the duo are now back to following each other.
"Leave it. If you don't know, you don't know," Angie commented on the Bachie Funny fan account.
And in another comment, she asked fans to stay out of her personal life.
"Everyone got their happy ending when the show was on," she wrote.
"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."
Carlin also moved out of the apartment he previously shared with Angie, in Sydney's eastern suburbs.
This article originally appeared on our sister site Now To Love.