Gigi lamayne reveals how her ex boyfriend cheated on her

I'm not aware of any information about Gigi Lamayne revealing how her ex-boyfriend cheated on her. Gigi Lamayne is a South African rapper and songwriter, and I couldn't find any credible sources indicating that she has publicly spoken about being cheated on by an ex-boyfriend.

It's possible that you may be thinking of a different celebrity or individual. If you could provide more context or clarify what you're referring to, I'd be happy to try and help you further.

It's also important to note that celebrities often keep their personal lives private, and it's not uncommon for them to not publicly discuss their relationships or personal struggles. If Gigi Lamayne has indeed spoken about being cheated on, it's likely that it was in a private setting or in a way that hasn't been publicly reported.