The cage fighter told Now that he found it funny his ex-wife Katie Price offered support to Chantelle Houghton, the estranged mother of his child Dolly.
"I find it quite comical, actually, that someone who Chantelle hated is now conveniently an ally," Reid said.
"I'm not surprised and I don't think anyone is. They're best buddies now! It's very sad - I saw my future with both of them but now they've teamed up against me."
He added: "Chantelle hated Katie because she made a lewd comment about our sex life just after Dolly was born. It disgusted me, too."
Reid also claimed to have got "romantic" with Houghton and "passionately kissed" her after their initial split, though he said "it was far too soon" for the couple to sleep together.
"She told me she missed me and still loved me," he said.
"I really hoped we could resolve our problems and get back together. She's the mother of my child and I still wanted to spend the rest of my life with her.
"I know this was the woman who'd publicly dumped me on Twitter and got me arrested for trying to get into my own home, but she was still the person I wanted to spend the rest of my life with."
Read the full story in Now magazine, out today (Tuesday, November 27).