The American reality TV star maintains that despite their break-up, the girls have no hard feelings between them.
"I actually broke up with Coby and moved out late last year. I wish her the best but have nothing to do with her," Edelsten, 34, told Daily Mail Australia.
"There was something specific that happened among other things leading up to it but I don't like speaking badly about people and would prefer to keep that private," she explained.
Edelsten's announcement comes four months after the star told The Kyle and Jackie O show she had a 'girl crush' on Boatman before the two started dating.
"She was my girl crush, but more like a fantasy girl crush than anything I took serious," she said at the time.
Edelsten made mention of her ex-husband Geoffrey Edelsten and his current wife Gabi Grecko.
She revealed, "Apparently it was only a joke about Geoff and Gabi getting back together...that’s what he said in his texts to me last week anyway."