The 34-year-old beauty and John, 41, split in July on the series finale of her reality show 'Total Bellas', and Nikki has confessed to being devastated by the suggestion that their relationship was completely fake.
The brunette beauty - who was engaged to John at one point - explained: ''When everyone was saying what I was going through was fake for ratings and all that and when you're really going through it, it's like, you're just, in my heartache you're literally just knifing it and just churning it.''
Nikki insisted she's happy to go unnoticed for the time being, saying she doesn't want her career to be overshadowed by her much-discussed split from the wrestler-turned-actor.
She told Cosmopolitan magazine: ''We're both are at the point that we just don't want to be talked about at all together anymore.
''We don't want our break-up to define us or interfere with our work. And that was happening for a while.''
In fact, Nikki revealed that the experience has discouraged her from ever dating another celebrity.
She said: ''Going through all that, I don't ever want to do it again. It scares me to ever have another public relationship.''
Nikki is now keen to ensure that people know her for more than her dating history.
The American star shared: ''I don't want my relationship to define who I am, as a woman and to take away all the hard work that I've ever done in my career.
''I think for a man, it's different. I feel like, if anything, the woman gets blamed for what happens, for taking away from what they do. But I get all my work taken away because of that.
''I don't know, I feel like sometimes there's a double standard and I really have felt that. And it's been really, really hard.''
In the Hall By The Sea at Dreamland, Reef brought their Revelation tour to life as they delivered one of the best live sets I've had the privilege to...
Sharon Van Etten unveils an ominous black and white video directed by Katherine Dieckmann for her latest song 'Jupiter 4'.
As the nights draw in and the temperature drops, Crooked Man treats us to a fabulous slice of sun-soaked House, Disco and Electro.
The 1975's third studio album 'A Brief Inquiry into Online Relationships' is imminent, with another album ('Notes on a Conditional Form') already...
This New York quartet have teamed alongside Canadian rocker Billy Raffoul for their new tune 'Say Amen'. It's their second official single of the...
Tristan Corrigan on the difficulties of making music within a genre that is so popular.