Wright quit the scripted reality programme earlier this year and recently fronted his own Mark Wright's Hollywood Nights show.
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Asked how she got on with him, TOWIE's Billi Mucklow told Heat: "I've known Mark since I was little and I don't like him at all. I just don't.
"I lived down the same street as him. I think he's changed a lot."
Kilbey added: "He's up his own arse, isn't he?"
Of whether she watches his now show, Mucklow added: "Yeah, a bit. I thought it was okay. I don't really get what it's about.
"I can't stand all that, 'I'm here for you son. I will be here for you'. He's in LA, having the time of his life! I could just punch him."
