The couple - who are parents to three-month old daughter Dolly - parted ways earlier this month, after Reid was arrested on suspicion of causing criminal damage and using violence to secure entry to the home they share in Essex.
Reid subsequently spoke to Now magazine, claiming Houghton was at fault for the domestic disturbance and posting a video appeal to his former girlfriend on the publication's website.
Writing in her new! magazine column, Houghton revealed she was "devastated" by Reid's interview.
"I am gutted that Alex gave an interview to a magazine about our break-up," she explained. "I actually feel devastated that he did it so soon - it wasn't even a week after we split. I'm upset about the timing and by what he said."
Houghton also denied she was responsible for Reid's arrest, saying: "Alex got arrested because he kicked a door down that isn't his property - it's the landlord's property."
She continued: "It's so hurtful - this is my life, it's not a joke. I feel betrayed, really. I have seen Alex's video message and I'm really confused by it.
"I saw Alex the weekend before last, when he came to the house to see Dolly on the Sunday. And he came again last Saturday."
Reid has since claimed Houghton will not allow him to spend time with their daughter alone, and revealed he is returning to cage fighting to provide for Dolly.
Houghton's column can be read in full in this week's new! magazine, which is published today (Tuesday, September 25).
Photo gallery - Alex Reid and Chantelle Houghton:
Copyright: Rex Features Steve Meddle/Rex Features